E46 M3 Breakdown - advice required!
E46 M3 Breakdown - advice required!
Author
Discussion

JimboM3

Original Poster:

295 posts

241 months

Thursday 22nd March 2012
quotequote all
Hi all,

For the second time in a week I am calling out to PHers for advice (not having a great week!)

The car has broken down symptoms as follows. Immediately before, it seemed to have trouble idling (revs dropped and nearly stalled at lights), then a hot/burning smell then white smoke from under bonnet. the engine otherwise was running perfectly smoothly.

I pulled over immediately and popped the bonnet to be confronted with more whiteish smoke and a burning smell (more rubbery than oil).

I checked the oil/water and all OK. Temps were normal. No oil leaks as far as I can see. The only thing I can see amiss is with a torch aimed down behind the bumper I could see specks of what do not appear to be oil but something black and dry in a splash like arc on the bottom tray under the belts.

My first (extremely untrained) thoughts are something has seized and a belt is rubbing. Fortunately this happened 100yds away from my favorite indy garage so I have left it in their car park and will get them to take a look tomorrow AM if they can.

Any ideas? Does this sound expensive!?

Many thanks in advance!

Jim


4rephill

5,171 posts

209 months

Thursday 22nd March 2012
quotequote all
If it smelt like burning rubber and there's black particles beneath the auxiliary belt, My monies on the hydraulic belt tensioner bearings seizing (No.5 here : http://www.realoem.com/bmw/showparts.do?model=BL92... )

JimboM3

Original Poster:

295 posts

241 months

Saturday 24th March 2012
quotequote all
Was a seized air con compressor. Expensive but at least not too serious!

J

4rephill

5,171 posts

209 months

Saturday 24th March 2012
quotequote all
JimboM3 said:
Was a seized air con compressor. Expensive but at least not too serious!

J
Ah!, didn't think of that! (right idea - wrong part!)

Glad you got it sorted and there was no extra damage caused! (looking at the price on realoem for the part alone - Ouch!)

StuB

6,695 posts

270 months

Saturday 24th March 2012
quotequote all
Glad to hear its sorted. Uncommon fault IMO.

Welshbeef

49,633 posts

229 months

Saturday 24th March 2012
quotequote all
Oh well part has failed after x number of years... So the new OEM part should last the same again.
Suck it up annoyingly but then realise it's a one off for what 7 years?

Tyrewrecker

6,419 posts

185 months

Saturday 24th March 2012
quotequote all
JimboM3 said:
Was a seized air con compressor. Expensive but at least not too serious!

J
Odd - I had exactly the same issue recently and thought of such when I read your post. The burning etc damaged the power steering belt and we disconnected the air conditioning as a temp measure. Is yours also connected to power steering?