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Mysterious Engine & Gearbox Oil Leaks??? Worrying

Posted: Tue Feb 20, 2018 9:22 pm
by martinc
Hi All ,

After purchasing my X5 30d E70 , upon closer inspection ive discovered 2 oil leaks? One is midway down the engine around the head gasket area ? No evidence of headgasket going. And the other is on the Auto box where its meets with the engine? potential internal gearbox seals?

The oil seems to have been there a while but couldve been a build up over time, i just want it right.

The car is having compression tests tomorrow so i will hopefully know if its losing pressure somewhere.

Does anyone know if this is a common issue ?

Regards

Re: Mysterious Engine & Gearbox Oil Leaks??? Worrying

Posted: Tue Feb 20, 2018 9:39 pm
by Horizon
How long have you had the car ? Did you buy it from a car dealer? You may be able to reject the car, or get the repairs done at their expense.
If bought privately probably not an option.

Re: Mysterious Engine & Gearbox Oil Leaks??? Worrying

Posted: Tue Feb 20, 2018 9:41 pm
by martinc
Unfortunately not , it was bought from an auction [emoji17]

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Re: Mysterious Engine & Gearbox Oil Leaks??? Worrying

Posted: Tue Feb 27, 2018 5:32 pm
by martinc
Hi all ,

I'm looking at replacing my gearbox oil but however my local Europarts has mentioned that it's not just the oil !

You to replace the bottom pan aswell , it apparently comes in a set kit ? Anyone eles  heard of this before ?

Also I've noticed a slight leak from where the box meets the engine ? Is this the internal seals going ?

Cheers

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Re: Mysterious Engine & Gearbox Oil Leaks??? Worrying

Posted: Tue Feb 27, 2018 5:51 pm
by X5Sport
Have a look on Realoem (use the last 7 of your VIN) to pull up your car and see what the service kit comprises.  It may be that th filter is part of the pan.

This is the one for my X6 with the 8sp box....and yes it is a complete kit inc pan.

http://www.realoem.com/bmw/enUS/showpar ... Id=24_1372

Re: Mysterious Engine & Gearbox Oil Leaks??? Worrying

Posted: Tue Feb 27, 2018 5:54 pm
by martinc
Ahh good idea ! I didn't think of that.

Is the gearbox filter part of the servicings?

Do you recommend changing the inner seals while the box is off?

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Re: Mysterious Engine & Gearbox Oil Leaks??? Worrying

Posted: Tue Feb 27, 2018 5:54 pm
by X5Sport
Updated.....previous post.

Re: Mysterious Engine & Gearbox Oil Leaks??? Worrying

Posted: Tue Feb 27, 2018 5:56 pm
by martinc
What a bugger , but thanks anyway

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Re: Mysterious Engine & Gearbox Oil Leaks??? Worrying

Posted: Tue Feb 27, 2018 7:00 pm
by Pat Mustard
My twopence worth ! Dont go into panic  mode just yet. First thing is to remove the undertray. Give all the oily parts a good spray with a degreaser. Let it sit for awhile and then get your pressure washer out . Only when everything is clean will you see where the oil is coming out . Its quite possible its old oil . I came upon one recently where oil was everywhere and it turned out some idiot at some stage had overtightened the oil filter cracking the housing.

Re: Mysterious Engine & Gearbox Oil Leaks??? Worrying

Posted: Sun Mar 04, 2018 6:25 pm
by martinc
Cheers pat ,

I plan to get all this lot fitted asap, when I do I will give it a good clean.Image

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