Other S60 Problem: Entering limp mode - DPF error after every ~130 km

[GnArnold]

Greetings folks!
Potential new volvo-owner here.


Been looking at the market recently, thinking about replacing my tired old '01 Ford Galaxy.
I've stumbled upon a decent deal - S60 D5, 2006, 6 speed manual, ~350k km on the clock, nice interior set up, all the bells and whistles.



Looks real good for the price on pics.

Seller describes problem as:
"Issues - car goes into limp mode, gives DPF error"

When i e-mailed him for some more info i got this reply:
"Last time we deleted the DPF error, the car went on fine for ~130km before going limp again"

Anyone has ideas here about what could be the reason?
From what I've read about these cars so far, it could be a few things from a bad sensor, messed up dpf unit itself, turbo perhaps?


Car is roughly 45,000 czk (1550 gbp, 1850 usd, 1832 eur)
Which is an average price for used cars, now given everything else about the car, except the dpf error id say its quite fair.

Additional info - here was supposedly some more work done on the engine too, i apologise for bad translation, not familiar with the terms
"Replaced all valve lifters and INA rockers"
"New oil, filters"
"Belts, water pump INA"
"Resealed injectors"

Car has been standing since February


Now, I'm quite tempted to go check it out in person too, but it all depends if the limp mode issue is fixable.
I'll give out cookies to anyone who'll help! <3

[SnineT]

Most likely the dpf sensor, it could also be the seller doesn't clean it often enough,

If you do buy it take it on a 20 mile drive once warmed up and hold a lower gear to maintain 3000 rpm, no need to do 70, 40 is fine you just want the rpm and a clear road.

[Simmy]

dont buy a cheap dpf pressure sensor they dont last. get a genuine volvo/ ford one . has the car been used for short hop journeys? these can be the cause of dpf problems. a good code read with vida or similar should help you find why dpf messages show. read particulate trap pressure /temp/ and all dpf pipe work for leaks. and when last regen ocoured / check oil level to see its not high / or diluted with fuel .

[GnArnold]

Aight, thanks for tips y'all!
Will hopefully check it out next week!

[Symes]

Question the seller about oil consumption too, there are issues with the 185 engine and worn oil control rings allowing oil into the exhaust and helping to block the dpf. Check out the 'diesel engine's section of the forum as well as this section. Replacing the piston rings is cited as a fix but requires major wotk.
Worth a quick check of the tailpipe, it shouldn't be very sooty or have an oily/sticky residue.