linacrystal7

S90 diesel particulate filter issue

I'm having some trouble with my 2021 Volvo S90 diesel. It's done 159987 km and recently I've noticed reduced engine power and quite a bit of smoke when accelerating. I suspect it might be the diesel particulate filter, but I'm not sure. Anyone experienced similar issues?

A 2021 Volvo S90 diesel with 159,987 km is experiencing reduced engine power and excessive smoke during acceleration, suspected to be due to a diesel particulate filter (DPF) issue. The symptoms align with a clogged DPF, potentially caused by a drop in fuel efficiency and possibly a faulty backpressure sensor. Suggested solutions include attempting a forced regeneration through a long drive at a consistent speed or seeking a professional inspection, which confirmed the DPF defect, leading to a necessary repair.

Did this summary help you solve your problem?

4 comment(s)

I have a Volvo S90 too, although it's an older model. Those symptoms do sound like a DPF issue. Have you tried forcing a regeneration? Sometimes a long drive at a consistent speed can clear it out. Otherwise, it could be a sensor fault causing it to clog up prematurely. What's your usual fuel efficiency like?

Thanks for the quick reply! I haven't tried forcing a regeneration yet, but I will give it a go. I have been paying attention to the fuel efficiency and noticed a drop recently. Where is the sensor you are referring to?

Okay, if the fuel efficiency has dropped, that definitely points to the DPF being overworked. I am referring to the backpressure sensor, it measures the pressure in the DPF. In my case, the regeneration didn't solve the issue, and I ended up having to get the DPF replaced at a workshop. I'd recommend getting a vehicle inspection to confirm before spending any money.

Thanks a lot for the advice! I will take it to the workshop for inspection. I drove there, and they confirmed the DPF is defective. The repair will cost 1550€. Thanks again for your help!

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

VOLVO

community_crosslink_rmh_model

S90