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EGR Diagnostics & Repair

EGR Diagnostics & Repair

EGR Fault Diagnosis & Repair Across the West Midlands

EGR system faults are among the most common causes of engine warning lights, limp mode, and rough running on modern diesel vehicles — and they frequently appear alongside AdBlue faults. We diagnose and repair EGR faults on-site across the West Midlands.

EGR valve fault diagnosis and repair on a diesel vehicle
A faulty EGR valve is one of the most overlooked causes of ongoing engine problems — and one of the most cost-effective to fix when caught and diagnosed correctly.

What our EGR repair service covers

Full EGR system diagnosis through to cleaning or replacement — carried out at your location.

  • Full EGR system diagnostic and fault code analysis
  • EGR valve live data testing and flow rate analysis
  • EGR cooler inspection and fault assessment
  • Professional EGR valve cleaning where carbon build-up is the cause
  • EGR valve or cooler replacement with correct specification parts
  • Full ECU re-scan to confirm all fault codes are clear
Process

How our EGR repair works

Diagnosed accurately. Cleaned or replaced correctly. Confirmed with live data before we leave.

1
Full diagnostic scan
We read all stored fault codes and live EGR system data to confirm the nature of the fault — whether it's a stuck valve, carbon build-up, a cooler failure, or an electrical issue.
2
EGR valve and cooler testing
We test the EGR valve's live flow rate and movement, inspect the cooler for signs of failure, and compare all readings against the expected values for your specific vehicle.
3
Cleaning or replacement
Where carbon build-up is the cause we carry out a professional EGR valve clean on-site. Where the valve or cooler has failed mechanically or electrically we fit the correct specification replacement.
4
Recheck and confirm
We re-scan the ECU, check live EGR data to confirm the system is operating correctly, and verify all fault codes are clear before leaving the vehicle.
Proof

Recent EGR repair jobs

A sample of the EGR diagnostic and repair work we carry out across the West Midlands.

Job summaries

Volkswagen Transporter — Dudley

EGR valve stuck open due to heavy carbon build-up. Professional clean carried out on-site. Live data confirmed correct valve movement. Engine warning light cleared.

BMW 3 Series — Walsall

EGR fault code alongside limp mode. EGR valve electrically failed — replaced with correct specification part on-site. Limp mode resolved and ECU confirmed clear.

Ford Transit — Stourbridge

EGR cooler failure causing coolant contamination. Cooler replaced on-site. Full system recheck carried out. No further faults or warning lights.

Peugeot 3008 — Coventry

EGR and AdBlue faults appearing simultaneously. Both systems diagnosed and repaired in a single visit. All fault codes confirmed clear on re-scan.

Reviews

Saved me the cost of a new EGR valve — turned out a clean was all it needed. Came to my workplace and had it sorted within two hours.

Volkswagen Transporter owner, Dudley

Limp mode cleared and the car drives properly again. Didn't try to sell me parts I didn't need. Really impressed.

BMW 3 Series owner, Walsall

Sorted the Transit EGR cooler on the car park at work. Professional, on time, and a fair price for the job.

Ford Transit owner, Stourbridge

Fixed both the EGR and AdBlue faults in one visit. Saved me booking two separate jobs. Brilliant service.

Peugeot 3008 owner, Coventry
Pricing

What affects the cost

EGR repair costs vary depending on the vehicle, the nature of the fault, and whether cleaning or replacement is required.

  • Vehicle make, model, and EGR system configuration
  • Whether cleaning or full valve or cooler replacement is needed
  • Whether EGR faults appear alongside other system faults
  • Whether a full diagnostic scan is required before repair
  • Your location within the West Midlands service area
We always diagnose before quoting — you'll know the full cost before any work begins.

Ready to book?

Call us or send your vehicle details and the warning or fault you're experiencing for a quote.

Call us now Get a quote
Mobile service — West Midlands
FAQs

Questions about EGR repair

Quick answers before you book.

What does the EGR system do and why does it fail?

The EGR (exhaust gas recirculation) system recirculates a portion of exhaust gases back into the engine's intake to reduce nitrogen oxide emissions. Over time, carbon deposits from exhaust gases build up inside the EGR valve and cooler, causing them to stick, restrict flow, or fail entirely. Diesel vehicles with frequent short journeys are particularly prone to carbon build-up.

Can the EGR valve be cleaned rather than replaced?

Yes — in many cases a professional EGR valve clean is enough to restore correct operation, particularly where carbon build-up rather than electrical or mechanical failure is the cause. We always test the valve before recommending a route, which means you only pay for what's actually needed rather than replacing parts unnecessarily.

Why does my EGR fault keep coming back after a clean?

Recurring EGR faults after cleaning are usually a sign that the valve has deteriorated beyond the point where cleaning provides a lasting fix, or that the driving pattern is causing rapid carbon build-up again. In these cases a replacement valve is the more reliable long-term solution. We'll advise honestly on which route makes more sense for your vehicle.

Is the EGR repair carried out on-site?

Yes. We carry out all EGR diagnostic and repair work fully on-site at your home, workplace, or wherever the vehicle is located across the West Midlands. There's no need to arrange a garage visit or vehicle recovery.