[MattRS74]

Hi - posted this in the XC60 forum a couple of weeks back, but thought an engine specific thread might be better.

Recently, my 4 month old XC60 D5 (5 cyl auto) suddenly bogged down as I crossed some local busy traffic lights (from a standstill), revs wouldn't come up and it just slowly rolled forward. After a few seconds I flicked it across into sport mode and the revs came back... Limped home and called Volvo Assistance, as the 'engine check' light was now on. My wife reminded me I'd mentioned that the car felt down on power and hesitant the week before.

The Volvo Assistance guy came out from Allianz, checked the diagnostics and a few fault codes were shown (I can vaguely remember seeing EGR and O2 sensors mentioned). He tried to clear these but they came back immediately.

The car then spent 11 days with the dealer, who tried to clear codes, and sent the vehicle home with a technician a few days on the trot to try to capture the fault (where the codes and 'engine check' warning kept coming back) - they initially thought they'd traced the issue to a poor electrical connection, but it turned out not to be the case.

They moved on to live data capture in the car by the workshop manager and master technician, working with Volvo Technical. To cut a long story short, Volvo Technical 'remapped' the car last week (after considering asking the dealer to strip a demonstrator and try donor parts) and declared the issue fixed.

Over the weekend, after a few drives - I don't think it is resolved. There is now very little difference in pickup between normal and sport mode on the gearbox (both feel very aggressive), and I am occasionally finding a bad 'flat spot' that is similar to the bogging down that happened originally at the traffic lights. Now though, it is under hard acceleration - sometimes when you try to kick down and overtake it just holds the revs at that level and creeps forward...

Anybody know whether it is possible that they have taken the cheap way out and tried to 'map around' a problem in the ECU?

Need to get my language right before calling service again tomorrow... The dealer has been really good, but getting a little fed up now.


Thanks

Matt