Volkswagen Passat B7 2.0 TDI 140bhp — Injector Failure
High-mileage Passat B7 TDIs suffer injector wear. The common rail system operates at extreme pressure and injector precision degrades with use.
Severity
SevereDIY Difficulty
Professional Only
Est. Cost
£300–£1000
OBD Codes
P0201P0202P0263Injectors
Typical layout and location for the Injectors assembly.
Symptoms
- Rough idle and misfire
- Hard cold starting
- White smoke on startup
- Oil level rising (diesel dilution)
- P0201-P0204 codes
Root Cause
Common rail injectors wear at the control valve and needle seats over hundreds of thousands of injections. Contaminated fuel or extended filter service intervals accelerate this.
How To Fix
- Contribution test identifies worst cylinder
- Ultrasonic clean and test before replacing
- New injectors coded to ECU by diesel specialist
- Cost: £250-500 per injector fitted
Estimated Repair Costs
| Repair Option | Est. Cost (GBP) |
|---|---|
| DIY (parts only) | £120–£400 |
| Independent Garage | £300–£1000 |
| Main Dealership | £480–£1600 |
Other Faults on This Variant
DSG 7-Speed DQ200 Dry Clutch Shudder
ModerateThe DSG 7-speed DQ200 dry clutch gearbox in the Passat B7 has a well-documented shudder issue from a standing start. VW issued multiple software and mechatronic updates.
EGR Cooler Failure
SevereEGR cooler failure on the Passat B7 2.0 TDI causes coolant loss and white smoke. The internal corrosion of the cooler allows coolant into the intake manifold.
DPF Blockage
ModerateThe Passat B7 TDI is often used as a company car for short local journeys — not the motorway machine it was designed to be. DPF blockage is the inevitable result.
Disclaimer: Repair cost estimates are indicative and based on community data. Always get a quote from a qualified mechanic before proceeding with any repair.