"limp Mode"

Burgy

///Member
I dont think that is limp mode.

Generally, You can rev freely in limp mode, but there is a huge power loss.
'Cererus Paribus'

When we were working on my Polo Gti, With the k04 setup we had a small boost leak. The car went into limp mode but I could still rev high.

To temporarily fix limp mode:

Turn off car for 2min..

If that doesnt work, disconnect battery for 5min..

If that doesnt work.. It isnt going into limp mode.

What happens is the ecu will 'reset' itself and drive normally, then shortly after, if there is a problem, it will go into limp mode again.
 

Mamba

Member
Burgy I have to disagree a little bit with you... :)

On the E39 M5 there were various MAPS for limp home mode, depending on the fault picked up by the DME the MAP of limp home mode was choose, for instance, the three MAPS I can remember offhand were one for vehicle speed not allowed above 60km/h, more than one for engine revolution limit and the third was a combination of the two.

You are right though, if one switch the car off and wait a while till the fault goes outside the limp home mode parameters the engine will operate normally till the next fault trigger the limp home mode again.

On the E39 M5 I got a few limp home modes which limited my revolutions as well as speed due to to high engine intake air temperature, this was caused every time I sat in slow traffic and at the end I figured it was the heat build up inside the engine bay which caused this. The car spend weeks at BMW to try and find why it went in Limp home mode but BMW never found anything wrong... :(

I do not know the conditions of trigger for limp home mode of the OP specific car but I guess it might well be a similar trigger for limp home mode depending on the severity of the fault condition.
 

zaleonardz

Well-known member
Any faulty signals from MAF to MAP, to Cam(s) to crank, to O2 and the computer does resort to a default map limiting all variables...

Hell, its usually a squirrel stuck in cyl 3.....
 

Blackflag

New member
FWIW, we had a similar problem driving back to the Cape from Grahamstown a few weeks back in my wife's two-year-old Tiguan. Spluttering up towards Sir Lowry's Pass from Grabouw was no joke let me tell you.:yuck:

Turned out to be coil problems that were fortunately covered by the 3-year warranty.

Took PhilWest 10 days to locate the problem though.....
 

johanngerber254

New member
MMM, hope im posting this in the right place, anyway, i have recently bought a 1996 E36 328i Auto with 116000 kms, never been a BMW fan, but absolutely fell in love with this car until a few days ago....

I drove home from work and the car stuck in fourth gear (limp mode apparently) no lights on the dash board came on. Im quite worried as a reconditioned gearbox is going to cost me a fortune, i pulled off the road and switched the car off, i put it in park and after a very short moment the car jumped into park and it seemed to be fine again.

Anyone experienced this before? And what could the possible causes be? Could it be transmission fluid or simply just the gearbox that needs a service? Im really hoping that its not the gearbox thats busy packing up?

Any help please?
 
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