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LONG-HAUL / DISTRIBUTION
DAF XF / CF
DAF XF / CF with the PACCAR MX-11 / MX-13 engine is a workhorse — when the EGR cooler, fuel pump and cab seals are kept honest.
SYMPTOMS
What you'll notice
Tell-tale signs the DAF XF / CF is asking for attention.
- Coolant loss with white exhaust smoke
- Power loss with rail-pressure related codes
- Cab wind noise / water ingress at speed
- Repeated regen attempts and increased fuel burn
DIAGNOSTICS
How we find the fault
- 1
DAVIE scan
Read full vehicle, log live engine and aftertreatment parameters.
- 2
EGR cooler pressure test
Isolate and pressurise cooler to confirm internal cracking.
- 3
Fuel system pressure test
Cranking and run pressure with return-flow check at each injector.
- 4
Cab smoke leak test
Smoke machine on cab to find compromised door seals or grommets.
TYPICAL REPAIRS
What we fix on the DAF XF / CF
EGR cooler replacement
Fit new cooler, gaskets, clamps and re-pressure test the circuit.
HP pump / injector service
Replace wear items, code injectors in DAVIE, prime and bleed.
Cab seal renewal
Replace door / window seals and re-test with smoke machine.
Common faults at a glance
Quick reference of the issues we see most on this platform.
- PACCAR MX EGR cooler cracks
- Fuel pump wear
- Cabin air leaks