vinkodex.2.5 TDI (R5): injector seal and cylinder head
It does not show up on every car. Check before you buy.
expensive
severity
not available
mileage
3
sources
3 sources next to the write-up.
The fault
How you spot it
The copper washer under the injectors of the five cylinder PD diesel (Transporter T5, Crafter I) gets crushed over time, and the seal lets go. First you hear a hissing, "coughing" noise from the engine bay when cold, then soot builds up around the injector. If it is not replaced at this point, the escaping combustion gas erodes the injector seat in the cylinder head: from then on comes cylinder head machining or replacement, far more expensive than the copper washer. The AXD is the earliest and weakest version of the family; the later BNZ/BPC is structurally strengthened. What accelerates it is almost always oil that does not meet the specification.
Which model
Who it affects
The card opens the generation, the engine or the transmission.
Engines and transmissions
Engine
AXD
Engine
AXE
Engine
BNZ
Engine
BPC
Engine
BJJ
Engine
BJK
Engine
BJL
Engine
BJM
Engine
CEBA
Engine
CEBB
Engine
CECA
Engine
CECB
vinkodex.Checklist
2.5 TDI (R5): injector seal and cylinder head
What you would check for this fault. Take it to the car.
Before you buy
Checklist
What you tick stays on this device only.
Sources
How we know
TorqueCarsCommon VAG 2.5 TDi R5 Problems Issues (T5 Transporter)We look at the most common problems and issues on the wonderful 2.5 TDi from the VW group and help you diagnose and avoid engine problems by highlighting the things to look out for.
MotorReviewer - In-Depth Engine Reviews2.5 R5 TDI PD Engine - In-Depth Look at Design and ReliabilityWhat is the 2.5 R5 TDI PD Engine ? Is it good or bad? Learn about VW/Audi 2.5 R5 TDI PD Engine design, specs, features, relaibility, and its the most common problems.- vwt4forum.co.ukT5 2.5 injector replacementvwt4forum.co.uk
Information, not an expert opinion
We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.
- A fault on the list does not mean the car you are looking at has it.
- A fault missing from the list does not mean the model is fault-free. Write-ups are made model by model. Not all of them are done.
- You decide whether to buy. This is no substitute for an inspection. That needs a workshop and a history check.