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Big feller · Jan 24th, 2019, 21:05

Our V50 2.0l diesel has been playing up over the last couple of years. I hope this will help anyone with similar problems.

The car drove well on short journeys but the long journeys that would normally be expected to clear the DPF seemed to do the opposite.

Driving at night we could see a fair bit of smoke in the rear view mirror when accelerating. Particularly noticeable on the motorway.

It went into the dealer for forced regeneration on a couple of occasions. Better for a while and then back to its old tricks.

Recently got a load worse. Back to the dealer and asked them to have a better look. They advised replacement EGR valve, DPF and exhaust gas sensor. I got this done and things were better for a very short while. Then I suffered kangarooing at low speed and massive drop in power. On the way back to the dealer it got really bad and I heard blowing from the exhaust. This was diagnosed as a written off catalytic converter and the brand new DPF was blocked beyond repair.

The previous work had been done by an independent as the dealer prices were ludicrous. Dealer price for new cat was something like £800 + labour. Aftermarket unit was fitted for less than £150 + labour. Also another new DPF.

At this stage I was worried that all the new stuff was likely to be written off again as I wasn't sure the original problem had been sorted. Independent garage suggested turbo was now about the only probable cause.

Reluctantly, I decided to replace the turbo. Found a replacement balanced cassette - turbo innards for about £130, but the bolts on the turbo were so badly seized that garage suggested new unit. Inspection of old turbo showed that it had a fair bit of wear and was likely to be throwing oil at the DPF / CAT.

Lesson to be learned - If your diesel has similar symptoms it may be worth investigating the turbo first to save writing off DPF and CAT.

Jan 24th, 2019, 21:05	#1
Big feller Man of many volvos Last Online: May 20th, 2019 19:04 Join Date: Jan 2007 Location: High Wycombe	Smoking V50 diesel Our V50 2.0l diesel has been playing up over the last couple of years. I hope this will help anyone with similar problems. The car drove well on short journeys but the long journeys that would normally be expected to clear the DPF seemed to do the opposite. Driving at night we could see a fair bit of smoke in the rear view mirror when accelerating. Particularly noticeable on the motorway. It went into the dealer for forced regeneration on a couple of occasions. Better for a while and then back to its old tricks. Recently got a load worse. Back to the dealer and asked them to have a better look. They advised replacement EGR valve, DPF and exhaust gas sensor. I got this done and things were better for a very short while. Then I suffered kangarooing at low speed and massive drop in power. On the way back to the dealer it got really bad and I heard blowing from the exhaust. This was diagnosed as a written off catalytic converter and the brand new DPF was blocked beyond repair. The previous work had been done by an independent as the dealer prices were ludicrous. Dealer price for new cat was something like £800 + labour. Aftermarket unit was fitted for less than £150 + labour. Also another new DPF. At this stage I was worried that all the new stuff was likely to be written off again as I wasn't sure the original problem had been sorted. Independent garage suggested turbo was now about the only probable cause. Reluctantly, I decided to replace the turbo. Found a replacement balanced cassette - turbo innards for about £130, but the bolts on the turbo were so badly seized that garage suggested new unit. Inspection of old turbo showed that it had a fair bit of wear and was likely to be throwing oil at the DPF / CAT. Lesson to be learned - If your diesel has similar symptoms it may be worth investigating the turbo first to save writing off DPF and CAT.