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Understanding the VAQ Differential in VAG Performance Cars

When it comes to modern front-wheel-drive and Haldex-based AWD performance vehicles, putting power down efficiently is everything. That’s where Volkswagen Group’s VAQ differential comes into play — a clever piece of technology designed to improve handling, traction, and overall driving engagement.

Let’s dive into what the VAQ differential is, how it works, and which vehicles feature this advanced system.

What Is the VAQ Differential?

VAQ stands for “Vorderachsquersperre” — a German term meaning “front axle transverse lock.” It’s Volkswagen Group’s name for an electronically controlled limited-slip differential (eLSD) that actively manages torque distribution between the front wheels.

Unlike basic open differentials that rely on brake-based traction control, the VAQ system prevents wheelspin by transferring torque to the wheel with more grip — providing improved cornering dynamics and traction in both dry and slippery conditions.

How It Works

The VAQ differential uses a multi-plate clutch pack (similar to a Haldex all-wheel drive system) integrated into the front axle differential housing. It’s operated via an electro-hydraulic actuator, controlled by the car’s onboard computers (primarily the ESP/ESC system and drivetrain control module).

Here’s what happens in real-time:

• During cornering or aggressive acceleration, sensors detect differences in wheel speed and load.

• The system sends hydraulic pressure to engage the clutch pack, directing more torque to the outside wheel (with more grip).

• This actively reduces understeer, enhances turn-in, and improves traction exiting corners.

Unlike brake-based systems, which cut power to reduce slip, the VAQ system reallocates torque, delivering better performance without compromising momentum.

Key Benefits of VAQ

• Improved traction in low-grip conditions (rain, snow, or dirt)

• Enhanced cornering stability and faster corner exits

• Reduces understeer commonly found in FWD platforms

• More precise handling compared to brake-based torque vectoring

• No driver input required – it’s fully automatic

Which VAG Vehicles Have the VAQ Differential?

Not all VAG performance cars have VAQ — it’s typically reserved for mid-to-high trim levels of front-wheel-drive hot hatches or sedans. Here’s a list of models that feature the VAQ differential (either standard or optional):

Volkswagen

• Golf GTI Performance (Mk7 & Mk7.5)

• Golf GTI Clubsport / Clubsport S

• Golf GTI TCR

• Golf GTI Mk8 (standard VAQ)

• Golf GTD Mk7.5 (Performance Pack)

SEAT / CUPRA

• Leon Cupra 280 / 290 / 300 (Mk3)

• Leon Cupra R

• Cupra Leon Mk4 (2020+) — higher trims

• Cupra Formentor VZ (FWD variants)

Škoda

• Octavia vRS 245 / 250 / 280 (FWD variants)

• Octavia RS Mk4 (selected FWD trims)

Audi

• Audi S1 (includes rear diff with similar torque vectoring)

• *Some FWD A3 2.0 TFSI S line models (Performance Packs, EU only)

Note: AWD models like the Golf R or Audi S3 use a Haldex AWD system, which incorporates a similar clutch-based rear differential, but it’s not the same as VAQ (front axle specific).

Maintenance & Longevity

The VAQ differential uses its own dedicated hydraulic fluid, similar to DSG transmission oil. It’s generally maintenance-free, but for enthusiasts or track-driven cars, fluid changes every 60,000–80,000 km (or ~50,000 miles) are recommended to preserve optimal performance.

The VAQ differential is one of the smartest solutions VAG has engineered for FWD performance cars. By actively managing torque across the front axle, it brings noticeable improvements in traction, grip, and handling — especially during spirited driving or on the track.

If you’re shopping for a GTI, Cupra, or an Octavia VRS, look out for the VAQ-equipped trims — it’s a game-changer that transforms how these cars handle corners and power delivery.

For pricing on the VAQ diff service, contact us using the options on our contact page ‘here‘.

Exciting News: We’re Expanding Our Services to Include Smart Repairs and Small Bodywork! 

As your trusted VAG vehicle repair specialist, we’re always looking for ways to better serve you and keep your car in top condition. That’s why we’re thrilled to announce that we’ll soon be offering smart repairs and small bodywork repairs. This is to complement our existing range of services.

What are Smart Repairs?

Smart repairs (Small to Medium Area Repair Technology) are a cost-effective and time-efficient way to address minor cosmetic issues. Such as scratches, dents, stone chips, and scuffs. These repairs are ideal for vehicles with damage that doesn’t warrant a full respray or major bodywork intervention. Using advanced techniques and specialized tools, we can restore your car’s appearance to like-new condition without the hefty price tag of traditional repairs.

Why Choose Smart Repairs?

• Quick Turnaround: Most smart repairs are completed in a matter of hours, so you can get back on the road quickly.
• Cost-Effective: These repairs save you money by focusing only on the damaged area. Rather than painting the entire panel.
• High-Quality Results: We use the latest technology to ensure that the repair blends seamlessly with your car’s original finish.

Expanding Our Expertise

Our commitment to quality and customer satisfaction has always been at the heart of what we do. With our new smart repairs and small bodywork services, we can now offer even more solutions to keep your vehicle looking and performing its best. Whether it’s a minor scratch from a parking bay or a small dent from an unfortunate tight bend, we have you covered.

Stay tuned for more updates as we roll out these exciting new services. If you have any questions or would like to book an appointment, don’t hesitate to contact us. Your vehicle deserves the best, and we’re here to deliver!

Contact us on 01642 613852 or send us an email at northeastautotech@gmail.com ‘Here‘.

You can also send us a message and we’ll respond as soon as we can on Facebook ‘Here‘.

Expantion into Valeting and SMART repairs

Why Differential Servicing Matters – Don’t Skip It!

Your vehicle’s differential is essential for transferring power to the wheels, especially when turning or when grip levels change. In VAG vehicles (particularly those equipped with quattro or Haldex all-wheel-drive systems) the differential works hard behind the scenes to ensure balanced traction, stability, and control in all driving conditions. The differential is the gear train that allows the wheels on a drive axle to rotate at different speeds when cornering. This prevents the wheels from scrubbing or skidding.

Over time, the differential oil begins to degrade. It collects debris and loses its ability to lubricate and protect the internal gears properly. When this happens, you may experience symptoms such as; whining noises, clunky gear engagement, vibration during acceleration, or even full mechanical failure if left unaddressed. Replacing or rebuilding a failed differential can be extremely expensive. Often far more than the cost of routine maintenance.

What is recommended?

That’s why we strongly recommend differential servicing every 40,000 miles or as advised by the manufacturer. The service includes draining the old fluid, inspecting for signs of contamination or metal particles, and refilling with high-quality differential oil suited to your drivetrain. For Haldex-equipped vehicles, changing the fluid and replacing the filter is crucial. Skipping this step can lead to pump failure or issues with AWD engagement. Problems that could have been easily avoided.

Whether your vehicle is stock or tuned, keeping your differential properly serviced helps preserve smooth power delivery. As well as enhancing grip, and protecting against premature wear. It’s a small investment that pays off in performance, reliability, and peace of mind.

Book your differential or Haldex service today—your drivetrain will thank you!

Contact us by phone on ‘01642 613852‘ or on Facebook ‘here‘.

Performance Parts vs. OEM: When Should You Upgrade?

At North East Auto Tech, we know that VAG enthusiasts—whether driving a Golf GTI, Audi S3, or SEAT Leon Cupra—are always looking for ways to enhance performance. One of the most common questions we hear is:

“What’s the difference between OEM parts and performance upgrades, and when should I choose one over the other?”

Whether you’re planning a remap or just want more excitement from your drive, understanding how performance parts differ from OEM is key to getting the results you want—without compromising safety or reliability.

When Should You Choose Performance Parts Over OEM?

You should consider upgrading when:

• You’re planning a Stage 1 or 2 remap

• You want better cornering or braking performance

• Your factory parts can’t handle increased power or load

• You’re preparing the car for track days or spirited driving

For example, remapping your Audi TTS without an uprated clutch or intercooler may give short-term gains, but can quickly lead to heat soak, clutch slip, or component wear.

The Risks of Remapping Without the Right Hardware

Many drivers make the mistake of remapping first—then upgrading later. But remapping your ECU increases power and torque, which puts added strain on the whole system.

Without the right supporting hardware, you risk:

• Turbo overheating or boost leaks

• Brake fade under hard driving

• Clutch or gearbox wear

• Poor fuel economy

• Reduced reliability and drivability

A proper performance build balances power gains with supporting upgrades like high-temp brake fluid, stronger mounts, uprated fuelling, and more efficient cooling. We exclusively offer Revo remaps. Revo clearly outlines when specific hardware upgrades are recommended, and when they’re essential to maintain the health and reliability of your vehicle.

What’s the Best Upgrade Path?

The ideal upgrade path depends on what you’re looking to achieve with your vehicle—whether it’s improved drivability, track performance, or enhanced everyday use. At our specialist VAG workshop, we often recommend the following staged approach:

• Performance air intake systems to increase airflow and support engine efficiency.

• High-flow exhaust systems to reduce back pressure and unlock additional power, especially when paired with tuning.

• Uprated intercoolers to maintain cooler intake temperatures and avoid power loss under load.

• Upgraded clutch kits to handle the extra torque delivered by performance tuning and remaps.

• Big brake kits or performance brake systems to improve stopping power—especially important when increasing speed and engine output.

These upgrades help ensure your vehicle performs at its best while remaining reliable. Whether you’re planning a remap or already running more power, the right hardware can make all the difference.

VAG Tuning and Hardware Experts

At North East Auto Tech, we don’t just install parts—we build tailored upgrade packages that work with your specific vehicle and your performance goals.

Whether you’re tuning a Golf R, Audi RS3, or Skoda Octavia VRS, we make sure every component works in harmony.

Thinking About Upgrading? Let’s Chat.

We offer honest, expert advice on:

• Remapping

• Suspension and handling upgrades

• Brake systems

• Injector and fuelling setup

Call us on 01642 613852
Or send us a message on Facebook  ‘here‘

Performance Parts vs. OEM

The VW Transporter T5 and T6 are popular vans known for their reliability and versatility. However, like any vehicle, they are not without their common issues. Below are some of the frequently reported problems for these models:

Volkswagen Transporter T5 Common Problems

1. Dual Mass Flywheel (DMF) Issues
   • Symptoms: Clutch judder, vibrations, or rattling noises during gear changes.
   • Cause: Wear and tear on the DMF, common in higher-mileage vehicles or those used for heavy loads.
2. EGR Valve Problems
   • Symptoms: Loss of power, increased fuel consumption, and the engine management light illuminating.
   • Cause: Carbon build-up in the Exhaust Gas Recirculation (EGR) valve.
3. Turbo Failure
   • Symptoms: Loss of power, black smoke from the exhaust, or a whining noise from the turbo.
   • Cause: Oil contamination or overboosting leading to turbocharger wear.
4. Water Pump and Timing Belt
   • Symptoms: Overheating or visible coolant leaks.
   • Cause: Failure to replace the timing belt and water pump at the recommended intervals can lead to premature failure.
5. Sliding Door Mechanism
   • Symptoms: Doors become difficult to open or close smoothly.
   • Cause: Worn or misaligned rollers and tracks.
6. Rust Issues
   • Symptoms: Visible rust spots, particularly around wheel arches and underbody areas.
   • Cause: Poor paint protection on some models, exacerbated by exposure to road salt.

Volkswagen Transporter T6 Common Problems

1. AdBlue System Faults
   • Symptoms: AdBlue warning light, limp mode activation, or difficulty starting.
   • Cause: Faulty AdBlue injectors or crystallization of AdBlue fluid in the system.
2. DPF (Diesel Particulate Filter) Blockage
   • Symptoms: Reduced power, excessive smoke, or the DPF warning light illuminating.
   • Cause: Short journeys preventing the DPF from regenerating properly.
3. Clutch and Gearbox Wear
   • Symptoms: Difficulty selecting gears or slipping clutch.
   • Cause: Heavy usage, towing, or high mileage.
4. Electrical Issues
   • Symptoms: Faulty sensors, central locking issues, or malfunctioning infotainment systems.
   • Cause: Poor connections, software glitches, or worn components.
5. Front Suspension Problems
   • Symptoms: Knocking noises, uneven tyre wear, or poor handling.
   • Cause: Worn suspension bushes or ball joints.
6. Coolant Leaks
   • Symptoms: Low coolant levels or visible puddles under the van.
   • Cause: Faulty water pump or leaking radiator hoses.

General Maintenance Tips

• Regular Servicing: Follow the manufacturer’s service schedule to prevent many of these issues, as with any vehicle!
• Oil Changes: Use the correct grade of oil, especially for engines with turbos or DPFs.
• Timing Belt Replacement: Adhere to intervals for timing belt and water pump replacement to avoid costly repairs.
• DPF Care: If you drive primarily short distances, consider occasional longer trips to allow for DPF regeneration.
• Inspect Sliding Doors and Seals: Regular cleaning and lubrication can prevent sticking or misalignment.

By addressing these issues proactively, you can ensure your T5 or T6 remains reliable and performs optimally over the long term. VW Transporter T5 and T6 

Since spring is just around the corner, now is the perfect time to ensure your camper is in top condition for the adventures ahead. After months of winter storage or regular use, your vehicle may need a little attention to keep everything running smoothly.

There’s nothing worse than setting off on a road trip only to be met with unexpected issues—especially when you’re miles away from home or in the middle of nowhere. Avoid the hassle by addressing any minor faults, unusual noises, or general maintenance needs before the season truly begins.

From routine servicing and safety checks to diagnosing knocks, rattles, or electrical gremlins, we’re here to help you get road-trip ready. Rather book in with us today and start the season with confidence! Contact us ‘here‘ for information on how to book in.

Why Your VAG Vehicle Deserves Top-Quality Pads and Discs

Let’s talk about something we all rely on but rarely think about until it’s too late: your brakes. Yes, those unsung heroes that save your bacon every time a squirrel darts across the road, or when Karen in her SUV decides to brake-check you for no apparent reason. If you’re driving a high-powered vehicle, investing in top-notch brake pads and discs isn’t just a good idea—it’s essential.

Why You Can’t Cheap Out on Brakes

Here’s the deal: your car isn’t just any car. It’s not a budget hatchback struggling to hit 60 mph. It’s a machine that can go from zero to “I’m gonna lose my license” in seconds. With great speed comes great responsibility—and that responsibility falls squarely on your brakes. Cheap brake pads might save you money now, but when they’re screeching like a banshee and struggling to stop your beast of a car, you’ll wish you’d splurged for quality.

The Science of Stopping

Think of your brake pads and discs as the dynamic duo of stopping power. Brake pads create friction against the discs, which converts your car’s kinetic energy into heat and brings you to a halt. Now, if you’ve got cheap, low-quality pads, they’ll wear down faster than your patience in Christmas traffic. Worse, they might overheat, leading to brake fade. Trust us, brake fade is as terrifying as it sounds. Imagine pressing the brake pedal and feeling… nothing. Yeah, let’s avoid that.

Quality Matters

When it comes to Top-Quality Pads and Discs, you get what you pay for. High-quality brakes are designed to withstand the intense heat and stress that comes with high-speed driving and sudden stops. They’re made of better materials, last longer, and most importantly, they work when you need them most. Plus, they’ll keep that annoying brake squeal at bay, so you won’t sound like a poorly maintained bus.

Why It’s a No-Brainer for VAG Owners

If you own a VW Golf R, Audi S4, or any other high-powered VAG model, you already know you’re driving something special. Your car’s performance is a finely-tuned symphony of power, precision, and engineering brilliance. Don’t let subpar brakes ruin the harmony. Investing in premium brake pads and discs ensures your car stops as impressively as it accelerates. And let’s be honest, you’re not just buying brakes—you’re buying peace of mind.

How to Choose the Right Brakes

1. Go for Reputable Brands: Look for names you trust, not brands that sound like a knockoff video game console.
2. Check Compatibility: Make sure the pads and discs are designed for your specific VAG model. Trust us, not all brakes are created equal.
3. Consider Your Driving Style: Love the occasional track day? You’ll need performance-oriented brakes. More of a daily driver? Opt for durability and quiet operation.

Don’t Just Take Our Word for It

We’ve seen it all—from warped discs to pads worn down to the metal. The common denominator? Trying to save a few pounds on brakes. Your VAG vehicle deserves better, and frankly, so do you.

The Bottom Line

Top-Quality Pads and Discs aren’t just about safety (although that’s a biggie). They’re about enjoying your car to the fullest, knowing it’ll stop when you need it to. So go ahead, invest in those top-quality brake pads and discs. Your future self—and your car—will thank you.

If you’re looking for uprated pads and discs you can contact us ‘Here‘ for advice and pricing.

Top-Quality Pads and Discs

Why Your VAG Vehicle Deserves Top-Quality Brake Pads and Discs

Why Regular Servicing is Essential for Your VAG Vehicle (and What Happens When You Skip It)

If you’re an Audi, Volkswagen, Skoda, or SEAT owner, you already know that your vehicle isn’t just a car—it’s a high-performance machine that’s built to last. But even the most robust engines require regular upkeep to stay in top shape. Keeping up with your VAG vehicle’s service requirements does more than maintain performance—it protects your investment, keeps you safer, and can save you big money down the line. Here’s what you need to know about why regular servicing is essential and what can happen if you let it slide.

What Are the Key Service Requirements for VAG Vehicles?

VAG vehicles come with a manufacturer-recommended service schedule that covers everything from basic oil changes to more intensive maintenance. Here are some of the essential service intervals:

1. Oil Changes and Filter Replacements
   • Interval: Every 10,000–15,000 miles or annually.
   • Why It Matters: High-performance engines require clean oil to lubricate and protect their moving parts. Ignoring this can lead to sludge buildup, which clogs components and causes wear and tear.
2. Brake Checks and Replacements
   • Interval: Typically every 20,000–30,000 miles, depending on use.
   • Why It Matters: Over time, brake pads, discs, and fluid degrade, which compromises braking efficiency. If left unchecked, this can lead to safety issues or even expensive rotor and caliper replacements.
3. Timing Belt Replacement
   • Interval: Every 60,000–100,000 miles, depending on the model.
   • Why It Matters: The timing belt synchronizes your engine’s components. If it fails, you could face serious engine damage that requires costly repairs.
4. Transmission Fluid and Coolant Changes
   • Interval: Transmission fluid every 40,000 miles; coolant every 2–5 years.
   • Why It Matters: These fluids keep your engine and transmission from overheating. Old or low fluids can lead to premature wear, overheating, and expensive repairs.
5. Spark Plug Replacement
   • Interval: Every 30,000–60,000 miles.
   • Why It Matters: Spark plugs affect fuel efficiency and power. Worn plugs can cause rough starts, poor fuel economy, and misfires, which can damage the engine over time.

What Happens if You Skip These Service Intervals?

Skipping routine maintenance may seem like a minor oversight, but neglecting service intervals can have serious consequences for your VAG vehicle’s performance and lifespan.

1. Reduced Performance and Fuel Economy
   • Over time, dirty oil, clogged filters, and worn spark plugs reduce your vehicle’s efficiency. The engine has to work harder to produce the same power, which leads to increased fuel consumption and a sluggish driving experience.
2. Engine Damage and Costly Repairs
   • Neglecting oil changes and timing belt replacements can cause extensive damage to the engine, one of the most expensive components to repair. Engine parts can wear prematurely, and if a timing belt fails, it can cause catastrophic engine damage requiring thousands of pounds to fix.
3. Brake Failure and Safety Risks
   • Worn brakes can reduce stopping power, compromising your safety on the road. In worst-case scenarios, neglecting brake maintenance can lead to brake failure, putting you and other drivers at risk.
4. Transmission Problems
   • Transmission repairs are among the most expensive vehicle repairs. By not changing the transmission fluid, you risk damaging the gearbox and experiencing rough gear shifts, especially in automatic models.
5. Decreased Resale Value
   • When it’s time to sell or trade in your VAG vehicle, a full-service history can increase its resale value. Buyers look for well-maintained vehicles, and a lack of records could make it harder to sell or reduce the price you’re able to get.

The Bottom Line: Protect Your Investment

For VAG vehicle owners, regular servicing isn’t just about ticking boxes; it’s an investment in performance, safety, and value. Following the manufacturer-recommended schedule will keep your car running at its best and help you avoid unnecessary repairs and expenses.

Regular servicing doesn’t just benefit your vehicle; it protects your driving experience and keeps you confident behind the wheel. Looking after your VAG vehicle’s service requirements is the best way to ensure it remains reliable, safe, and enjoyable for years to come. To book in your vehicle with us for servicing or repairs, contact us ‘here‘.

Regular Servicing is Essential for Your VAG Vehicle

What to do when your Heater matrix is blocked? Flushing a heater matrix (heater core) is often not enough to fully resolve blockages because blockages can be caused by a variety of issues that flushing alone might not address. Here are a few reasons why flushing a heater matrix might not completely solve the problem:

Heater matrix is blocked

1. Severe Corrosion or Deposits

• Scale or corrosion: Over time, heater cores can accumulate rust, scale, or sludge, especially if the coolant isn’t changed regularly. These deposits can form thick blockages that flushing might not dislodge, as flushing only removes loose debris.
• Old coolant: When coolant becomes old, it can degrade and form sludge or gel-like deposits that solidify inside the heater core. A simple flush may not generate enough pressure to break up these deposits.

2. Partial Blockages Deep Inside the Core

• The heater core consists of narrow channels through which coolant flows. If blockages occur deep within the core or in areas where flushing fluid cannot reach effectively, the flush may only clear the outer or partially blocked areas. Leaving the deeper blockages untouched.

3. Internal Damage

• If the blockage is caused by internal damage, such as a collapsed or corroded tube inside the heater core. Flushing won’t fix the problem because the coolant will not be able to flow properly even after a flush.

4. Coolant Contamination or Wrong Mixture

• If there’s contamination in the coolant, such as oil or other debris from a blown head gasket or a mix of incompatible coolants, the blockages can be sticky or gummy. These contaminants can solidify and resist normal flushing methods, requiring more aggressive cleaning techniques or a complete heater core replacement.

5. Restricted Coolant Flow

• A blocked or restricted heater matrix is often a symptom of a larger issue, such as:
  • Failing water pump: If the water pump isn’t pushing coolant effectively, low flow could cause sludge to settle and create blockages.
  • Blocked radiator: If the radiator is blocked, it can restrict flow to the entire cooling system, causing the heater core to clog as well.
  • Thermostat issues: A malfunctioning thermostat can cause coolant flow problems, contributing to heater core blockage.

6. Chemical Flushing May Be Required

• In some cases, a simple water flush won’t break up stubborn deposits, and a chemical flush might be needed. These chemicals are designed to dissolve rust, scale, and sludge. However, even with chemicals, if the blockage is severe, it might not be enough.

7. Re-contamination from the Rest of the Cooling System

• If the rest of the cooling system (radiator, hoses, engine block) contains debris or sludge, simply flushing the heater core won’t solve the issue because the contamination will re-enter the heater core after flushing.

8. Potential for Recurring Blockages

• Even if flushing clears the blockage temporarily, the underlying cause of the buildup might not be addressed. When the coolant system isn’t properly maintained (using the right coolant and changing it regularly), the blockage can return over time.

When is Flushing Not Enough?

If flushing doesn’t resolve the issue or blockages recur quickly, it might indicate that a heater core replacement is necessary. If the heater core is heavily corroded, damaged, or severely blocked, it might be beyond the point where flushing can restore proper function. Which is usually the case an why would would never just offer flushing as a resolve to a problem.

In summary, flushing a heater matrix can sometimes clear minor blockages.  However, it might not be enough if there is severe scaling, internal damage, or underlying issues with the coolant system that need to be addressed.

If you’re suspicious your Heater matrix is blocked, Contact us ‘Here‘ for pricing and information.

Heater matrix is blocked

A question as a driver you may ask yourself, winter tyres: Are they worth it? Changing from summer to winter tyres if you live in various European countries is completely normal. In many countries a requirement! So why in the UK do we not deem it necessary? The majority opinion seems to be ‘well why do we need too, we don’t get bad weather often enough’. However, statistics have shown using winter tyres in conditions less than 7 degrees and in icy conditions can be up to 30% more effective and safer on our roads!

The majority of European countries state the use of winter tyres or all-season tyres from 1 November to the 31^st of March. Certain countries do allow summer tyres as long as they have a minimum tread depth of 4mm all around. Its confusing as each European country has a slightly different take on the law. Latvia for instance requires all 4 tyres to be identical! UK motorists are sceptical as to whether it is worth having a winter/summer set of tyres. However if budget allows it shouldn’t it be obvious if it keeps the occupants in our vehicles and others safer?!

According to leading tyre maker Continental: A car fitted with winter tyres braking on snow can come to a stop from 31mph in 35 metres. This is eight metres, or about two car lengths shorter than if it was fitted with summer tyres.

So what are the differences in summer and winter tyres?

Besides the obvious differences is the material in which are made with. Both tyres have a different rubber compound enabling them to react differently in the opposing weather conditions. They also have different tread patterns. Summer tyres have a tread pattern that doesn’t need to cope with snow and icy conditions. Winter tyres have a more compact pattern designed to grip onto the snow and ice without letting it sit in the tread.

It is worth noting winter tyres are not advised to be used all year round. Statistics show they have a slower braking distance throughout the summer months. As a country the UK currently advises winter tyres when the weather drops below 7 degrees consistently. However, there are no conrtrolled rules in place. We would advise All season tyres throughout the year if you are unable to swap to winter tyres over the colder months. We would also advise making sure there is a minimum of 3mm tread depth around the tyre. If you are unsure how to check the depth of your tyres you can find more information on a previous blog here:

Diesel particulate filters known as DPF are prone to issues if your diesel vehicle is not looked after as it should be, learn their problems and how to prevent them! Diesel vehicles made after 2000 were fitted with a DPF to limit the emissive power of particulate matter into the atmosphere. These filters lower emissions of harmful gases and the impact of diesel on the environment. However as an owner of a vehicle with DPF you need to make sure you are running the vehicle as you should to prevent the DPF clogging up.

Why does the DPF clog?

The DPF filters the emissions from the fuel, soot sits in the filter and limits the amount entering the atmosphere. Driving with additional engine faults causes excessive soot to clog up the DPF. The failure/clogging of the DPF is only a secondary result of poor engine running. This soot unfortunately tends to sit in the filter and clog causing your vehicle to usually throw up the engine management light. The vehicle may have a decrease in fuel efficiency and loss of power.

Diesels with a DPF filter need to carry out a regeneration. This is the process of burning off accumulated soot from the DPF. This prevents it from clogging and reducing the engine’s performance. For the vehicle to carry out an automatic regeneration there are a few stipulations. It requires roughly over a ¼ of a tank of fuel and be driven at a high speed for roughly 15-30 minutes. If your vehicle is used for town driving and short journeys, it will never have the chance to automatically carry out a regen which is when we see problems. This is where you need a mechanic to carry out a forced regen.

Forced regeneration.

Forcing a DPF regeneration can be done using a diagnostics tool. The vehicle needs to be driven for a certain amount of time, at a specific RPM and usually takes around 45 minutes. This can only be carried out if the DPF is no more than 60% clogged up. If its any more than that the DPF may need replacing. This wants to be avoided however as it is a pricey replacement.

Cleaners

We would recommend using the Liqui Moly Pro-Line Diesel System Cleaner ’ Reduces pollutant emissions, thus optimizing smoke opacity prior to emissions test. Successfully tested in international test bench analyses. Cleans injection nozzles, the entire fuel system and combustion chambers of any troublesome deposits. Prevents any seizing up and gumming up of nozzle needles. Optimizes the combustion process and restores the engine’s original performance.

Suitable for all diesel and turbocharged diesel engines with and without diesel particulate filter (DPF). Contents are sufficient for max. 70 l of fuel.

Application

To be added directly into the fuel tank. For preventive use during every inspection, after repairs to the fuel system, for treating problems’

This is not going to stop your DPF clogging however it will help to generally clean out the system when a vehicle is being driven correctly. You can find out more here!

If you’re having DPF problems give us a call on 01642 613825 or use our contact form ‘here’.

DPF problems and how to prevent them