car starts fine runs for 1, 2, or 3 miles then dies when coasting to a junction
e34 530 m30 engine 1990 automatic 100,000 miles
car starts fine runs for 1, 2, or 3 miles then dies when coasting to a junction
if you put back in neutral start up and then runs fine for rest of journey
could this be a sensor or something. any ideas?
ian nottingham england
Major Contributor
I thought the M30 engine only came in a 535 and 525. But probably not in Europe, I know they've always got additional engines so I'm probably wrong. Anyway, I've not run into that myself. I just thought I'd reply abd bump it back to the top. I'd think it is a sensor, posibly the engine temp sensor, but I'm really not sure.
A Bimmer Nut for sure: '04 530im (current daily driver), '97 m3, '98 323is, '99 Z3, '01 740iL, '06 330cicm zhp, '02 R1150R, '69 r60, Owner/Operator of www.Bimmer.info and www.BimmerNut.com
And I still maintain: '90 535im (sold to daughters best friend, one of my favorite bimmers), '92 525im (daughters other best friend now drives this one).
Big, Big Time Poster
Hi Ed,
In the early years, the 530 in europe was actually M30 straight 6 blocks displacing 2990 cubic centimetres. Its identical to the US version except for short stroke, I believe.
Grand Master
Sounds like vacuum leak or ICV to me.
93 525i / 01 330Ci / 98 Camry / 91 Volvo 240 / 99 Jeep GC
I had a similar problem with a different vehicle. Turned out the battery was junked. Enough juice to start, but would not sustain a charge. Either that or my alt. wasn't providing enough juice to keep it charged.
If you can test the battery scenario, may be a good idea.
uberhahn
'94 530i 5-speed. The work begins...
5-10 Grand Master
Not a vacuum issue I wouldn't think.
I vote for alternator/battery. had same thing happen to me. put your OBC in test mode and see what your voltage (test 9) says.
2 Grand Master
Fuel filter ok?
Thanks,
1995 525i Auto, M50TU 2.5L, EAT chip, 1/95 build, USA, 205/65/15 tires, ASC+T, HID, lumbar, EC Mirror, BMW Alpine 5 radio with BMW-Pioneer CD Changer, abt 236k miles, Oxford Green/Parchment
thanks for the ideas
Originally Posted by suuntobob
e34 530 m30 engine 1990 automatic 100,000 miles
car starts fine runs for 1, 2, or 3 miles then dies when coasting to a junction
if you put back in neutral start up and then runs fine for rest of journey
could this be a sensor or something. any ideas?
ive had a diagnostic done which showed no codes the batery is nly 6mnths old and in good cond
i am going to ypass the fuel filter and see if that cures it
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