Quote:
Originally Posted by ian.stone
I have a 65 plate V60 AT1517 30K miles, just out of warranty.
My problem began with Check engine light plus “Reduced Engine Performance”. Engine performance was normal.
AS it was under warranty I took it to a dealer who said the Manifold temperature sensor was blocked. Returned car as fixed. NB cleaning this is not on the service schedule. 4 weeks later it happened again, I took the sensor out, it was covered in carbon. Where does that come from, the exhaust, the only route I know is via the EGR valve which must be opening when the engine is cold.
Dealer had another go change some parts but not the EGR valve and changed the software. 6 months later (out of warranty now) Check engine light comes on. Plugged in diagnostics tester and get P04D900 – Closed loop EGR control at limit – flow too low. What I don’t know is this a new problem or the same as before masked by different software.
Can anyone with a diagnostics tester confirm they have the same error code.
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BTW doing a live engine test revealed the underlying error
ERG Monitor Bank 1
Component ID $40
Test value 97
Minimum limit 100
Maximum limit 300
Status Fail
Evening Friday 26 Jan 2019 did a “Contact us” on Volvo UK’s web site saying had owned Volvo's for 48 years and this one was the only one that had played up. Reply the following day saying it was a known issue and they would instruct a dealer to fix free of charge. Job done following Wednesday.
New EGR Cooler and pipework plus software.
I understand Volvo are doing this on cars up to 4 years old.