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2.5 auto
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JohnFZ4
- Newbie
- Posts: 2
- Joined: Sat Jan 13, 2018 6:56 pm
2.5 auto
Has anyone else had a problem whereby when I holding the car on the footbrake the engine revs rise about 200 or so rpms and if accelerated quite hard then come off the throttle it seems slow to return to normal revs, all the breather pipes were replaced, any idea's ??
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Smartbear
- Lifer
- Posts: 13685
- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
2.5 auto
It could be an air leak if the revs are slow to return, look at the inlet rubber around the small finger that branches off as they commonly split around there.JohnFZ4 wrote: ↑Sat Jan 13, 2018 7:08 pmHas anyone else had a problem whereby when I holding the car on the footbrake the engine revs rise about 200 or so rpms and if accelerated quite hard then come off the throttle it seems slow to return to normal revs, all the breather pipes were replaced, any idea's ??
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
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patriot66
- Lifer
- Posts: 3476
- Joined: Sun Jan 11, 2015 2:59 am
- Location: Mawdesley, Lancashire
2.5 auto
The corrugated elbow number 6 on this diagram perishes/splits and sucks air just before the throttle body, number 4. Changed mine last year. 
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Sterling Grey '03 2.5i SE / Infinitas Supercharger / S.M.G / Hardtop / Gloss Black 162s / Bilstein B4s / 3.0i Brakes / DLV De-Cat & Silencer / Rebuilt VANOS / Sonar 2Xcite Lights / Carbon & Alcantara Trim / M-Sport Seats / ...& Side Covers !
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Ducklakeview
- Lifer
- Posts: 6362
- Joined: Tue Mar 22, 2016 4:08 pm
- Location: Merseyside
2.5 auto
As above, or a vacuum leak in the line to brake servo.
Mike
Mike