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hanz View Drop Down
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Points: 5 		Post Options Post Options   Thanks (0) Thanks(0)   Quote hanz Quote  Post ReplyReply Direct Link To This Post Topic: overheating and missfire
    Posted: 05-June-2011 at 21:29
could anyone help my 1996 528i is overheating and missfireing.also no power at low revs?thanks
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Peter Fenwick View Drop Down
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Points: 6484 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Peter Fenwick Quote  Post ReplyReply Direct Link To This Post Posted: 05-June-2011 at 22:09
Blown head gasket?

Is it using oil and/or coolant?
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hanz View Drop Down
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Points: 5 		Post Options Post Options   Thanks (0) Thanks(0)   Quote hanz Quote  Post ReplyReply Direct Link To This Post Posted: 05-June-2011 at 22:23

no not oil but from time to time i have to top up the rad.

some one told me it could be the head gasket so i got some sealant whitch you can add to your coolant but this has made the overheating worse its called wonarweld by holts

 



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Peter Fenwick View Drop Down
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Points: 6484 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Peter Fenwick Quote  Post ReplyReply Direct Link To This Post Posted: 06-June-2011 at 09:06

Are there any obvious signs of coolant leaking?

I'd get a compression check done which will confirm if the head gasket is blown. Avoid driving the car too much because overheating can kill the engine.
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'Sniff test' the coolant for combustion gases.

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And really don't drive it.  Those engines cook easily, and are scrap afterwards.
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Originally posted by jetsetwilly2000 jetsetwilly2000 wrote:

And really don't drive it.  Those engines cook easily, and are scrap afterwards.

+1.

Depending on the age of the car, a cooked engine could mean the whole car is scrap as it will be beyond economic repair.
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hanz View Drop Down
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Points: 5 		Post Options Post Options   Thanks (0) Thanks(0)   Quote hanz Quote  Post ReplyReply Direct Link To This Post Posted: 06-June-2011 at 18:06

thanks chaps for that i appreciate it not a cheap fix i dont think.

 

 



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jetsetwilly2000 View Drop Down
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Points: 701 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jetsetwilly2000 Quote  Post ReplyReply Direct Link To This Post Posted: 06-June-2011 at 18:54
maybe not, but it might at least be cheap to diagnose. You never know, it might be something else...
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Points: 49 		Post Options Post Options   Thanks (0) Thanks(0)   Quote straight_6 Quote  Post ReplyReply Direct Link To This Post Posted: 30-June-2011 at 21:59

Hi,

With your symptons I would try a product called K-Seal. Its tried and tested by the trade. When my head gasket went on my 528i touring, the recover bloke mentioned this. It contains a copper metallic compound and will seal hairline cracks in the block. It costs about �10. Unfortunately I cooked my engine well in advance and the car was scrap.

Dont bother with the holts. give it a wirl and see what happens before the car goes to the scrap yard in the sky. All the best and keep us posted.

imran.
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