Engine Hesitation @ 70MPH

Smoothound · 06-16-2011, 06:23 AM

Hi All,

I have searched and can't find the answer.

I've noticed my car has a really strange hesitancy/lurching when at 70MPH in 6th (manual box). The best way to replicate it is as follows

1) Drive at 65MPH
2) Set cruise control
3) Gradually increase cruise control in 1MPH increments
4) At 70MPH there will be a lurch

I've sent it back to the dealer and they said they couldn't replicate the problem. It's pretty annoying as when you're cruising at 70MPH you get the lurching whenever the cruise control has to compensate for a hill. The only way to live with it is to cruise at 65 or 75.

It also does it on manual throttle and in other gears, this is just the easiest way to replicate the behaviour.

Has anyone else ever experienced this?

Does anyone with a 2007 330D fancy trying the above to see if the same happens?

Thank you!

enrita · 06-16-2011, 06:34 AM

you are better off asking on the UK regional forum . More Diesel there.

Quote:

Originally Posted by Smoothound

Hi All,

I have searched and can't find the answer.

I've noticed my car has a really strange hesitancy/lurching when at 70MPH in 6th (manual box). The best way to replicate it is as follows

1) Drive at 65MPH
2) Set cruise control
3) Gradually increase cruise control in 1MPH increments
4) At 70MPH there will be a lurch

I've sent it back to the dealer and they said they couldn't replicate the problem. It's pretty annoying as when you're cruising at 70MPH you get the lurching whenever the cruise control has to compensate for a hill. The only way to live with it is to cruise at 65 or 75.

It also does it on manual throttle and in other gears, this is just the easiest way to replicate the behaviour.

Has anyone else ever experienced this?

Does anyone with a 2007 330D fancy trying the above to see if the same happens?

Thank you!

Smoothound · 06-16-2011, 06:59 AM

OK, will do, thanks.

dyezak · 06-16-2011, 08:06 AM

You said this happens in other gears? So it's not MPH specific... Is it RPM specific?

Smoothound · 06-20-2011, 04:04 AM

Quote:

Originally Posted by dyezak

You said this happens in other gears? So it's not MPH specific... Is it RPM specific?

Yes, seems to be RPM specific. Seem to have an answer on the other thread

http://www.e90post.com/forums/showth...=1#post9852955

EGR valve apparently

06-16-2011, 06:23 AM	#1
Smoothound Enlisted Member 7 Rep 32 Posts Drives: E92 330D SE Join Date: Oct 2010 Location: Yorkshire iTrader: (0)	Engine Hesitation @ 70MPH - 2007 E92 330D Hi All, I have searched and can't find the answer. I've noticed my car has a really strange hesitancy/lurching when at 70MPH in 6th (manual box). The best way to replicate it is as follows 1) Drive at 65MPH 2) Set cruise control 3) Gradually increase cruise control in 1MPH increments 4) At 70MPH there will be a lurch I've sent it back to the dealer and they said they couldn't replicate the problem. It's pretty annoying as when you're cruising at 70MPH you get the lurching whenever the cruise control has to compensate for a hill. The only way to live with it is to cruise at 65 or 75. It also does it on manual throttle and in other gears, this is just the easiest way to replicate the behaviour. Has anyone else ever experienced this? Does anyone with a 2007 330D fancy trying the above to see if the same happens? Thank you!
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06-16-2011, 06:59 AM	#3
Smoothound Enlisted Member 7 Rep 32 Posts Drives: E92 330D SE Join Date: Oct 2010 Location: Yorkshire iTrader: (0)	OK, will do, thanks.
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06-16-2011, 08:06 AM	#4
dyezak General of the Armies 156 Rep 656 Posts Drives: X5M Join Date: May 2011 Location: Plano, TX iTrader: (1)	You said this happens in other gears? So it's not MPH specific... Is it RPM specific?
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