Chapmans Audi Specialist

28/10/2026

As you can see from the photo, this 2017 Audi 1.4 TFSI requires the front end to be removed to gain access to the timing belt.

With the front end stripped down, our technicians can get to work replacing the timing belt and ensuring everything is correctly fitted and timed before reassembly.

🚗 Does your Audi need some attention?

At Chapmans Audi Specialist, we offer:

✅ Servicing & Repairs
✅ Dealer-Level Diagnostics
✅ SVM Coding & Software Updates
✅ Timing Belt Replacements
✅ Clutches
✅ MOT Testing

We use ODIS dealer-level diagnostic equipment to provide specialist care for your vehicle.

📞 0116 2440404
🌐 www.chapmansaudispecialist.co.uk

🔧 We also work on VW, ŠKODA & SEAT!

27/10/2026

🔧 AUDI A5 – WIPERS NOT WORKING! 🚗⚡

This 2020 Audi A5 came into our workshop with a windscreen wiper fault. Every time the vehicle was started, a wiper warning appeared on the dashboard and the wipers refused to operate.

🔍 Time for some diagnostics!

Using our ODIS dealer-level diagnostic equipment, we worked through the guided fault-finding test plan, which eventually led us to investigate the LIN communication wire between the J400 wiper motor control unit and J519 onboard supply control unit.

⚡ Our electrical tests confirmed a wiring fault.

After studying the factory wiring diagrams, we established that the LIN communication wire was a dedicated circuit between the two control units.

Rather than simply replacing expensive components, we installed a temporary test wire to bypass the suspected faulty wiring.

✅ Success! The wipers were working again!

With the fault confirmed, we installed a new replacement wire into the vehicle's wiring loom, restoring communication between the control units.

A final check confirmed that the wipers were operating correctly and the warning had disappeared.

💡 This is why proper diagnostics are so important! Not every electrical fault requires a new control unit or expensive replacement parts. Sometimes it's a single damaged wire causing all the trouble.

At Chapmans Audi Specialist, we pride ourselves on diagnosing faults correctly rather than simply replacing parts and hoping for the best.

🚘 We specialise in AUDI, VW, ŠKODA & SEAT.

Whether you require:

🔧 Servicing & Repairs
💻 Dealer-Level Diagnostics & SVM Coding
⚙️ Clutches & Timing Belts
🔍 Electrical Fault Finding
✅ MOT Testing

Our experienced team will be more than happy to assist you.

📞 0116 2440404
🌐 www.chapmansaudispecialist.co.uk

📍 Chapmans Audi Specialist – Wigston, Leicester

23/10/2026

🔧 2023 AUDI A3 HYBRID – HIGH VOLTAGE BATTERY CHARGING FAULT! ⚡🔋

This 2023 Audi A3 Hybrid was recovered into our workshop with various warning lights illuminated on the dashboard and a fault relating to the hybrid battery system.

After carrying out a full diagnostic scan using our ODIS dealer-level diagnostic equipment, we worked through the relevant guided fault-finding test plans to establish the cause.

🔍 What did we find?

After further investigation, we discovered that the heater support pump had failed.

As this pump forms part of the hybrid system's cooling circuit, the vehicle had disabled high-voltage battery charging as a safety precaution.

🛠️ The repair

✅ Identified the faulty heater support pump.

✅ Replaced the failed pump.

✅ Followed the relevant Audi Technical Product Information (TPi).

✅ Used ODIS to carry out the guided coolant bleeding procedure, ensuring any trapped air was removed from the circuit.

✅ Completed final checks and confirmed the hybrid charging system was operating correctly again.

The result? One Audi A3 Hybrid back on the road and operating as it should! 🚗✅

This is another example of why having the correct diagnostic equipment, manufacturer technical information and experience is so important when repairing modern vehicles.

🔧 CHAPMANS AUDI SPECIALIST – LEICESTER

If you own an Audi, VW, Škoda or SEAT and require:

✅ Servicing & Repairs

✅ Advanced Diagnostics

✅ SVM Coding & Software Updates

✅ Clutches & Timing Belts

✅ MOT Testing

Please contact our friendly service team, who will be more than happy to assist you.

📞 0116 2440404

🌐 www.chapmansaudispecialist.co.uk

22/10/2026

🔧 AUDI A4 2.0 TDI – BOOST PRESSURE FAULTS & A POSSIBLE HIDDEN DPF PROBLEM! 🔧

This Audi A4 2.0 TDI was recently recovered into our workshop with various boost pressure-related fault codes.

Using our dealer-level diagnostic equipment, we carried out a series of checks, including analysing the Measured Value Blocks (MVBs).

🔍 Here's where things got interesting!

The ECU was reporting a calculated DPF soot loading of just 19 grams, yet the exhaust system appeared to be severely restricted.

Further investigation revealed some concerning readings from the exhaust pressure sensor:

Ignition ON: 0 hPa
⚠️ Engine at idle: 990 hPa

To rule out a faulty sensor, we carried out an independent mechanical pressure test using a manual gauge, which confirmed that the sensor readings were accurate.

So, we have an exhaust system showing excessive back pressure, yet the ECU's calculated soot loading doesn't appear to reflect the actual restriction.

🤔 Has someone been playing around with the software?

It's beginning to look suspiciously like someone may have previously modified the ECU software to suppress warning lights or emissions-related faults rather than repairing the underlying problem.

Further investigation is required before we can confirm exactly what's happened.

Unfortunately, the new owner could now be facing a substantial repair bill to return the vehicle to its correct factory specification.

Sometimes making a warning light disappear doesn't mean you've fixed the problem!

🔧 At Chapmans Audi Specialist, we diagnose faults rather than simply clearing fault codes.

If you own an Audi, VW, Škoda or SEAT and require:

✅ Servicing & Repairs
✅ Dealer-Level Diagnostics (ODIS)
✅ SVM Coding & Software Updates
✅ Clutches & Timing Belts
✅ DPF & Emissions System Diagnostics
✅ MOT Testing

Our experienced service team will be happy to help.

📞 0116 2440404
🌐 www.chapmansaudispecialist.co.uk

📍 Chapmans Audi Specialist – Wigston, Leicester

21/10/2026

🚨 AUDI Q3 – EML & EPC WARNING LIGHTS ON! 🔧

This Audi Q3 1.4 TFSI came into our workshop with both the Engine Management Light (EML) and Electronic Power Control (EPC) warning lights illuminated.

After a short road test, we also confirmed that the vehicle had entered limp mode, restricting engine performance.

🔍 Our investigation:

Using our dealer-level diagnostic equipment, we identified two fault codes relating to the turbocharger system.

After carrying out various diagnostic tests, we moved on to a visual inspection of the turbocharger and quickly discovered the problem!

⚠️ The electronic turbocharger actuator (V465) had physically broken!

The other end of the linkage was still attached to the turbocharger, and fortunately, the turbo wastegate mechanism was moving freely.

✅ The repair: A replacement turbocharger actuator is required, followed by the necessary adaptation and operational checks.

And as for those tiny horseshoe retaining clips... don't you just love them when they ping off into the engine bay and disappear forever! 😂🔧

Another example of why proper diagnostics and a good visual inspection are so important before replacing expensive components!

🚗 DO YOU OWN AN AUDI?

At Chapmans Audi Specialist, we specialise in:

✅ Servicing & Repairs
✅ Dealer-Level ODIS Diagnostics
✅ SVM Coding & Software Updates
✅ Clutches & Timing Belts
✅ MOT Testing
✅ Turbocharger & Engine Fault Diagnosis

We also work on VW, ŠKODA & SEAT vehicles.

📞 0116 2440404
🌐 www.chapmansaudispecialist.co.uk

📍 Independent Audi Specialist – Wigston, Leicester

20/10/2026

🚨 TOO MUCH ENGINE OIL CAN BE JUST AS DAMAGING AS TOO LITTLE! 🚨

This 2.0 TDI (DTUA engine) arrived at our workshop with an oil level warning displayed on the dashboard.

🔧 After checking the Measured Value Blocks (MVBs) using our diagnostic equipment and physically checking the oil level on the dipstick, we discovered the problem.

⚠️ The customer had significantly overfilled the engine oil!

As you can see in the photo, the oil level was well above the maximum mark, reaching all the way up to the blue line!

Excessive engine oil can cause serious problems, including:

🔴 Excessive crankcase pressure
🔴 Oil leaks and damaged seals
🔴 Oil entering the intake system
🔴 Turbocharger damage
🔴 Potential internal engine damage

Fortunately, we identified the issue before any serious damage was confirmed.

Remember: More oil doesn't mean better protection! Always ensure your engine oil is between the minimum and maximum marks.

🔧 CHAPMANS AUDI SPECIALIST – LEICESTER

If you own an Audi and require:

✅ Servicing & Repairs
✅ Dealer-Level ODIS Diagnostics
✅ SVM Coding & Software Updates
✅ Clutches & Timing Belts
✅ MOT Testing

Our experienced service team will be more than happy to assist.

📞 0116 2440404
🌐 www.chapmansaudispecialist.co.uk

We also specialise in VW, ŠKODA & SEAT vehicles.

15/10/2026

🔧 AUDI A3 – ENGINE MANAGEMENT LIGHT ON! 🔧

Not every fault code means a faulty component! 🔍

This Audi A3 1.6 petrol arrived at our workshop with the Engine Management Light (EML) illuminated.

Using our diagnostic equipment, we identified two fault codes relating to the Bank 1 Sensor 1 (pre-catalyst) lambda sensor.

Rather than simply replacing the sensor, we set about investigating the cause of the faults.

🔧 Our diagnostic process so far:

✅ Visual Inspection – Checked the electrical connector, terminal pins and visible wiring loom for damage or poor connections.

✅ Live Data Analysis – Monitored Measuring Value Blocks (MVBs), including fuel trim adaptations, lambda regulation and binary bit status.

✅ Idle & Higher RPM Testing – Analysed the lambda sensor's operation at idle and increased engine speeds. No abnormalities were identified during testing.

✅ Smoke Test – Checked the intake system for unmetered air leaks.

✅ Emissions Test – Carried out an exhaust emissions test, which the vehicle passed.

🔍 So, what's next?

Despite extensive testing, the fault has not returned and all readings currently appear normal.

Our next stage is to carry out further electrical wiring tests to rule out an intermittent wiring fault. If these tests prove satisfactory, we will need to consider the possibility of an intermittent internal failure of the lambda sensor itself.

This is why proper diagnostics are so important. A fault code points us in the right direction, but it doesn't necessarily identify the faulty component!

🚗 DO YOU OWN AN AUDI?

At Chapmans Audi Specialist, we offer:

✅ Servicing & Repairs
✅ Advanced Diagnostics & Fault Finding
✅ ODIS Dealer-Level Diagnostics
✅ SVM Coding & Software Updates
✅ Clutches & Timing Belts
✅ MOT Testing

We also specialise in VW, ŠKODA & SEAT vehicles.

📞 0116 2440404
🌐 www.chapmansaudispecialist.co.uk

Chapmans Audi Specialist – Independent Audi Specialists in Leicester.

09/10/2026

08/10/2026

🔧 AUDI A6 2.0 TDI – THERMOSTAT & WATER PUMP REPLACEMENT! 💧

Another busy day in the workshop at Chapmans Audi Specialist!

This Audi A6, fitted with the 2.0 TDI DKNA engine, came into us with a coolant leak.

Following our initial diagnosis and further stripping down, we traced the source of the leak to the thermostat housing.

With the faulty component identified, we are now replacing both the thermostat and water pump with new parts.

Once everything has been reassembled, we will vacuum-fill and bleed the cooling system to remove any trapped air, before carrying out our final checks to ensure the repair has been successful. ✅

🔧 DOES YOUR AUDI NEED SOME ATTENTION?

At Chapmans Audi Specialist, we offer:

✅ Servicing & Maintenance
✅ Mechanical Repairs
✅ Dealer-Level Diagnostics (ODIS)
✅ SVM Coding & Software Updates
✅ Clutch Replacements
✅ Timing Belt Replacements
✅ MOT Testing

📍 Chapmans Audi Specialist – Wigston, Leicester

📞 0116 2440404
🌐 www.chapmansaudispecialist.co.uk

🚗 WE ALSO SPECIALISE IN VW, ŠKODA & SEAT!

Dealer-level expertise without the main dealer price tag!

07/10/2026

🔧 AUDI 2.0 TDI – THERMOSTAT HOUSING COOLANT LEAK REPAIRED 🔧

Following on from yesterday’s post, where we diagnosed a coolant leak on this 2.0 TDI DSUD engine, we traced the leak to the thermostat housing.

The photo shows the new genuine thermostat assembly alongside the old unit.

If you look closely, you'll notice that the old thermostat on the right has an electrical connection, whereas the replacement genuine part no longer requires it.

This isn't a missing connection or an incorrect part. Audi has issued a TPi (Technical Product Information) explaining that the electrical connection is no longer required with the updated component.

The original wiring connector is therefore left disconnected and, as confirmed by the TPi, this will not generate a fault code or illuminate the engine management light.

It's a good example of why having access to the correct manufacturer technical information and dealer-level diagnostic equipment is so important when repairing modern vehicles.

✅ New genuine thermostat assembly fitted
✅ Cooling system refilled and tested
✅ Leak repaired
✅ Vehicle ready to return to the customer

If you own an Audi and require:

🔧 Servicing
🔧 Repairs
💻 Diagnostics
💻 SVM Coding & Updates
🔧 Clutches
🔧 Timing Belts
🚗 MOT Testing

Please contact our service team, who will be more than happy to assist you.

📞 0116 2440404
🌐 www.chapmansaudispecialist.co.uk

Chapmans Audi Specialist – Independent Audi Specialists, Leicester