hansdrache1

Citroen C4 diesel particulate filter issue

I'm experiencing some serious issues with my 2005 Citroen C4 diesel. It's got 125072 km on the clock. Lately, I've noticed a significant reduction in engine power, especially when going uphill. Also, there's quite a bit of smoke coming out when I accelerate. Could this be related to the diesel particulate filter?

The 2005 Citroen C4 diesel is experiencing reduced engine power and excessive smoke, potentially linked to a diesel particulate filter (DPF) issue. Possible causes include a clogged DPF or faulty sensors affecting regeneration. Solutions suggested include forcing a regeneration and checking the exhaust system for leaks or sensor faults. Ultimately, a workshop inspection confirmed a defective DPF, which was repaired, resolving the problem.

Did this summary help you solve your problem?

4 comment(s)

Sounds like it could very well be a DPF issue. Have you tried forcing a regeneration? Also, when was the last time you had the exhaust system checked for leaks or sensor faults? Ignoring those could cause DPF issues as well.

I haven't tried forcing a regeneration myself, no. I'm not really sure how to do that safely. The exhaust system hasn't been checked recently either. Could a faulty sensor really cause so much trouble? How does it affect fuel efficiency?

A faulty sensor upstream of the DPF can definitely mess with the readings and prevent proper regeneration, leading to a clogged filter and those symptoms you described. If you are not familiar with forced regeneration, I'd strongly recommend a vehicle inspection in a workshop, as forcing regeneration with underlying issues can cause more damage.

Thank you for the advice. I took your advice and brought it to a trusted workshop. Turns out the diesel particulate filter was indeed defective. The repair set me back 1550€, but at least it's running smoothly again.

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

CITROEN

community_crosslink_rmh_model