E39 2.8i stalling when hot query

Hi All,

I've searched on this but can only find vague references to possible crank sensor failure from 2002 ...

Any more recent thoughts on this?

Symptoms are stalling when hot both on coastdown and idling in stationary traffic ... you can see and feel it losing control of idle speed and it evetually loses it and it dies - recently its been reluactant to restart also ...

tia

Dr D

Reply to
drd
Loading thread data ...

When mine failed it was also very 'flat' pulling away from rest after re-starting. However, it threw up a code showing the crank sensor to be at fault so it's worth checking. It's a fairly easy DIY job to fit a new one, and it cost me about 50 gbp. So may be worth just changing it if you have to pay a similar amount to have the codes read.

Reply to
Dave Plowman (News)

Vapour lock in the fuel lines?

Check routing or for exhaust leak.

Reply to
R. Mark Clayton

aha - s'funny you say that coz I recently posted about a flat spot which I put down to a failing vanos unit but perhaps I should look at the crank sensor first ...

I am loathed to pay main dealer costs for a 10year old car ... can independant types read codes etc these days?

Reply to
drd

"drd" wrote

If they specialize in BMW/euro cars, they usually can.

If you post where you're from, someone may be able to even recommend a good indy shop near you.

Pete

Reply to
Pete

I dunno - I have a Peake code reader.

Reply to
Dave Plowman (News)

So do I. With the adapter for the serial connector-looking under-dash OBD as well as the circular connector on the engine.

Mine works fine on a 1991 e30 and a 2001 e39. It will also reset codes. I think the code reader and the extra OBD2 cable were about $100 or so.

Reply to
Dean Dark

doh ...

I'm near Brighton, UK.

and a recommendation for a decent gargage would be most welcome ... atb

Reply to
drd

There must be some in Brighton but I have used

Auto-Tecnik Fort Wallington Ind Est Fareham Hants PO16 8TT

01329 823550

Subsidiary of SNOWS BMW Main Dealer in Portsmouth and their body-shop.

I have also used:

E-Tech Motorsport Ltd Unit 4 The Tanneries Brockhampton Lane Havant PO9 1JB

023 9247 8300

Independent BMW specialists.

My local garage/repair shop owner has several BMWs himself (X5 Diesel - M5 and an M3) and I sometimes used him especially when jobs deed doing for MOT - He offers cut-price MOT whether you are a regular or not.

Reply to
Oscar

aha - I had the codes read at my local garage and indeed the crank sensor is "impausible or missing" ... A quick blast to my local GSF provided a new one for about £50 and I shall fit it tomorrow ...

I understand the sensor picks up from the front pulley but it was not visible from on top - does it need to come off from underneath?

atb

Steve

Reply to
drd

It can be done from the top - take off the fan shroud and fan/coupling.

Reply to
Dave Plowman (News)

one minute to locate and undo the sensor bolt (it's just under the bottom hose at engine end)

30 minutes to clear enough engine bay debris to access where the sensor plug joins the loom and unthread the cable ! Remove front lifting eye, oil filter cover, breather hose, beauty cover and two fiddly c-clips holding the cable shield across the front of the engine ...

it runs a LOT smoother and quicker and no stalling yet ...

thanks all

Steve

Reply to
drd

Yes - plugging it in is the awkward part. Probably easier with small hands - like many of these jobs.

Hopefully sorted.

Reply to
Dave Plowman (News)

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.