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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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Smoking V50 dieselViews : 815 Replies : 6Users Viewing This Thread : |
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Jan 24th, 2019, 21:05 | #1 |
Man of many volvos
Last Online: May 20th, 2019 19:04
Join Date: Jan 2007
Location: High Wycombe
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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. |
Jan 24th, 2019, 21:39 | #2 |
Junior Member
Last Online: Apr 20th, 2024 23:54
Join Date: Dec 2014
Location: Constanta
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Thank you for sharing... Good to know...
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Mar 5th, 2019, 20:15 | #3 |
Man of many volvos
Last Online: May 20th, 2019 19:04
Join Date: Jan 2007
Location: High Wycombe
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Update
Immediately after fitting the new DPF and catalytic converter along with a new turbo the car drove beautifully for about 50 miles before getting progressively worse and exhibiting all the symptoms of a blocked DPF. Totally undriveable after about 80 miles.
Having eliminated pretty much all other possibilities including leaks in the induction tubing I decided to check the injectors. On my V40 I had the injectors ultrasonically cleaned and back flushed. Sadly this seemed not to be an option on the V50 with the Siemens injectors. Peter Strong near Reading charged £15 per injector to test them and did so very quickly. It was about an hour's labour to remove. All four were well out of spec so a new set was ordered for £180 + VAT each. New injectors fitted and the DPF regenerated. The car fired up happily and idled smoothly. Out on the dual carriageway there were a couple of puffs of smoke but then it settled down and pulled smoothly. Fingers crossed we have now sorted what the Volvo dealer missed entirely. To sum up, if you have any symptoms similar to my description above I recommend starting off by getting the injectors tested. Assuming we really have found the fault this time, for an hour's labour and £60 I could have saved myself a couple of thousand pounds and a whole lot of grief. Will do my best to report back when I have put some miles on. |
Apr 1st, 2019, 18:47 | #4 |
Man of many volvos
Last Online: May 20th, 2019 19:04
Join Date: Jan 2007
Location: High Wycombe
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Good so far
Having done a few hundred miles since the new injectors were fitted all is looking good. A trip up the motorway at between 65 and 70 MPH with no heavy acceleration averaged 49 MPG. Definitely looking as though the injectors were the cause of trouble from the start.
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Apr 3rd, 2019, 14:07 | #5 |
Senior Member
Last Online: Nov 14th, 2021 20:50
Join Date: Jul 2008
Location: DARLINGTON
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1.6 or 2.0d?
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Apr 3rd, 2019, 18:09 | #6 |
Senior Member
Last Online: Apr 1st, 2024 17:55
Join Date: Sep 2017
Location: Berkshire
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Our V50 2.0l diesel has been playing up over the last couple of years.
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2006 S40 2.4 SE Auto. Ruby Red. 83K Miles Some previous cars include: Jaguar x type: Mazda 6 : Mazda 626: Ford Sierra 2.0: Toyota Celica ST 1600 : Hillman Avenger: Triumph Spitfire: Oh and a Volvo 340 GL 1984 company car from new. |
Apr 5th, 2019, 09:09 | #7 |
Man of many volvos
Last Online: May 20th, 2019 19:04
Join Date: Jan 2007
Location: High Wycombe
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It's a 2.0l. No additive required
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