CM classified digital edition - 15 October

This FREE download will give you access to 1000s of quality used trucks and trailers every week.

During the coming weeks and months we know you might struggle to access the shops, but don’t want you to miss out on those great used truck deals. For this reason, we’ve introduced Commercial Motor Classified Digital.

Every Monday you, and 18,500 other used truck and trailer buyers, will be able to browse all the same classified advertisements that appear in print.

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Used DAF XF: 10 common issues

used daf xf buying guide

Click here to view all of the used DAF XF trucks we have in stock.

The DAF XF is, as we have said, a very sturdy and well-built tractor unit, so there have been very few major component failures reported. Nothing mechanical is completely faultless, however, so here’s a list of things operators have told us may crop up:

used daf xf buying guide

1. Hub seals

Larger fleets report a noticeably high number of instances where hub seals need replacing.

used daf xf buying guide

2. Brake discs

Replacing brake discs often requires the hub to be sent away to a specialist to have the seized mounting bolts drilled out. DAF sells a complete new disc and hub assembly on an exchange basis.

used daf xf buying guide

3. Rear axle modulator valve

Wiring for the rear axle modulator valve is prone to breaking down within its protective sleeving. Check for temporary repairs that have been left to become permanent.

used daf xf buying guide

4. NOx sensors

NOx sensors often need replacing. Check to see if this has already been done.

used daf xf buying guide

5. Heat shields

Reports of heat shields corroding. Check for evidence this is beginning to happen.

used daf xf buying guide

6. Gauge clusters

Some reports of gauge clusters in the dashboard cracking for no apparent reason.

used daf xf buying guide

7. Wheel wings

Examples of the wings behind the front wheels cracking, especially across the joints and at the bottom where they meet the spray-suppression flaps.

used daf xf buying guide

8. Seats

In theory, drivers should use the air dump before getting in and out of the seats, but many don’t. This can result in the outside edge of the seat squab giving way, especially if the driver is of a larger build. Check before buying, then educate to avoid recurrence.

used daf xf buying guide

9. APU valves

APU valves on the air system are prone to corrosion, probably due to their low-slung position. Avoid by paying particular attention to this area when washing the vehicle.

used daf xf buying guide

10. Air pressure

Vehicles prone to losing air pressure very quickly when parked up overnight. The problem is usually the exhaust brake solenoid, which is positioned alongside the engine and therefore prone to repeated expansion due to heat followed by contraction on cooling leading to a gap.