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reduced Engine Performance

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40
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Joseph1949
Posts: 1
Joined: 28 September 2012
Year and Model: S40 1.6D. 2009
Location: Northern Ireland

reduced Engine Performance

Post by Joseph1949 »

On two occasions I've had a warning message which read "reduced engine performance" and the car goes into limp mode. On both occasions it has been after diesel has been put in the car but that may be just coincidence. The first time I put it down to suspect fuel which I bought to get me to my regular filling station. The second time I had bought the fuel at Asda which I hope is Ok. When it happened the wipers wouldn't turn off or the radio even though the key was removed. Has this happened to anyone else and what could it be.
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regent
Posts: 1319
Joined: 22 February 2010
Year and Model: 2015 XC60 T5
Location: Under the Hood
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Post by regent »

This could be something as simple as a relay contact stuck or a bad key switch. It is best to get the codes pulled and start from there. In addition, has the MIL come on with the warning? How long did the car stay in 'limp'? How did you manage to clear the problem in each occurrence?
Thanks
Example of Precision: Measure with a Micrometer, mark it with Chalk, and then cut it with an Axe.
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2015 BMW 335i
2015 XC60 T5 Premier Plus
2002 S60 2.4 n/a - retired :(
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