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Old 10th November 2019, 12:22   #11
Geoff130
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Thanks for all the replies, I unplugged the MAF and it revs freely to 4000 RPM now, completely different. I'll get a new Bosh sensor now.
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Old 10th November 2019, 12:34   #12
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Thanks for all the replies, I unplugged the MAF and it revs freely to 4000 RPM now, completely different. I'll get a new Bosh sensor now.

Once you have fitted the new MAF get the 160 remap You won't regret it.
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Old 10th November 2019, 18:39   #13
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My diesel revs quite happily up to the red line.

Yours should too so there is a fault to be found.---
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Old 10th November 2019, 21:41   #14
Mike Noc
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I don't know if it's related but there is a smell of the exhaust inside although It doesn't sound like the exhaust is blowing
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Thanks for all the replies, I unplugged the MAF and it revs freely to 4000 RPM now, completely different. I'll get a new Bosh sensor now.

Before splashing out on a new MAF plug it back in and try unplugging the EGR just to rule it out of the equation - when you unplug the MAF the EGR is disabled, so any fault with it will also disappear.
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Old 11th November 2019, 11:31   #15
Geoff130
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On the basis of it's dead anyway and nothing to loose I gave the sensor a good soaking with Electrlube contact cleaner and blew it out gently (not with an air line) a couple of times, let it dry and refitted it. The problem seems to have gone away and the car now revs as it should. Thanks again to everyone for the help and ideas.
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Old 11th November 2019, 17:01   #16
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I rarely take my CDT over 3,000RPM, I will get more acceleration by changing up with the same throttle opening. Pressing harder on the pedal above 3,000 doesn't do much except use more fuel and make more noise. 3,000 rpm in top gear equates to 90mph.
I agree, allow the turbo time to spool up and use the gears to shift up, by the time you get to 3000rpm you are flying, no need to rev the diesel to 3000+ just give it time, it is an great touring car, in the city so long is above 1000rpm you can drive in top very well.
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