528i SE Msport

[Waxduck]

Im looking for info on possable causes to misfire on my 1997 528. It runs ok at idle and while cruseing, i dont have any troble with starting cold or warm and the fuel consumption seams ok . Problem seams to be intermittant Only misfires under acseleration and seams to give a big splutter just before it starts to misfire then again when the problem clears? Any ideas on the cause will be much appreciated...

[Nigel Worc's]

It sounds as though it may be an air leak.

I had one on my E34, between the air filter and the inlet manifold, the rubber had split underneath.

May be worth a look !

[Vixpy1]

MAF or a Coil Pack

[Mario T PhD]

Air leak would be the culprit in situations where you run a lot of throttle for a long time

Hypothetically, +110mph on a motorway

Not that you would...

[Nigel Worc's]

On mine, whilst the engine was at constant speed, the position of the engine was stable, if you accelerated or decelerated, the engine moved, the split rubber then opened up.

[Waxduck]

Ok cant see any split in rubbers on air intakes so i guess i will have to try the coil packs . Thanks for the pointers! much appreaciated.

[road_rager]

Sounds like a coil pack, just buy one new one a swap them out one at a time untill you find the duff one! Had the same problem on my 325