Gearbox/Diff leak?

pjs · 10-24-2010, 09:50 AM

Just been checking my rear tyres, noticed this 'leak' on the pic. Car not been used today, windy and sunny, but no marks on the drive though. Any thoughts?

willhollin · 10-24-2010, 10:15 AM

Looks like a weep.

djnas123 · 10-24-2010, 10:20 AM

I was going to say that might be normal.

The bottom of mine looks like its wet all the time and has been like that since I had the car last year (the car was already 16 months old when purchased so I guess its always been like that too)

As my warranty is up end of Oct I thought id get my dealer to have a look just in case, so took it in last month and they said that its fine and there's no leaks.

However, when following other beemers, I find myself looking at that area to be sure. It would be good to know from other members if it a normal occurrence.

RichJ · 10-24-2010, 12:01 PM

I'm pretty sure there is no oil marks on mine.

pjs · 10-25-2010, 06:12 AM

Bump - Any more thoughts guys? Especially from the mechanically minded?

willhollin · 10-25-2010, 06:16 AM

Charming.

pjs · 10-25-2010, 06:24 AM

Quote:

Originally Posted by willhollin

Charming.

Thanks will, I dont understand in laymans terms what a 'weep' is

willhollin · 10-25-2010, 06:29 AM

A weep would be just a small amount escaping. I imagine there is a gasket between the two sides of the diff so this could be the problem.

Oil based products would tend to spread / creep over the surrounding areas.

Why not clean it off with a de-greaser (fairy liquid might do it) and see if it happens again.

JonnySi · 10-25-2010, 11:56 AM

Its just a weep, BMW warranty will not do it because it is not dripping. Also there is no gasket between the diff body and back plate. It is a sealer which takes 24hrs to dry.

pjs · 10-25-2010, 12:54 PM

cheers guys, i'll try the degreaser to clean it up, and maybe put a bit of clear silicone on the joint

Pr335bob · 08-04-2014, 08:22 PM

Any updates ?

RichJ · 08-05-2014, 07:08 AM

This is exactly what i have albeit slightly worse. I've commented on this on a separate thread. I guess nothing to worry about until the leak becomes worse or starts dripping on the floor....

RichJ · 08-13-2014, 06:40 AM

Any update on this?

pjs · 08-13-2014, 12:53 PM

It was 4 years ago chaps. Can't remember. That car was ace but was always in for warranty work. Then someone crashed into it when it was parked and wrote it off!

10-24-2010, 09:50 AM	#1
pjs Colonel 275 Rep 2,774 Posts Drives: i8 Join Date: Oct 2008 Location: NORTH iTrader: (1)	Gearbox/Diff leak? Just been checking my rear tyres, noticed this 'leak' on the pic. Car not been used today, windy and sunny, but no marks on the drive though. Any thoughts? Attached Images
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10-24-2010, 10:15 AM	#2
willhollin Major General 268 Rep 9,915 Posts Drives: VW T5 Join Date: Apr 2008 Location: Worcestershire iTrader: (1) Garage List 2007 BMW E92 330d SE [10.00] 2010 Transporter T5 ... [0.00]	Looks like a weep. __________________
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10-24-2010, 10:20 AM	#3
djnas123 Private 4 Rep 62 Posts Drives: 320d Join Date: Mar 2009 Location: UK iTrader: (0)	I was going to say that might be normal. The bottom of mine looks like its wet all the time and has been like that since I had the car last year (the car was already 16 months old when purchased so I guess its always been like that too) As my warranty is up end of Oct I thought id get my dealer to have a look just in case, so took it in last month and they said that its fine and there's no leaks. However, when following other beemers, I find myself looking at that area to be sure. It would be good to know from other members if it a normal occurrence.
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10-24-2010, 12:01 PM	#4
RichJ First Lieutenant 10 Rep 358 Posts Drives: E92 M-Sport 330i Le Mans Blue Join Date: Jan 2010 Location: South iTrader: (0)	I'm pretty sure there is no oil marks on mine.
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10-25-2010, 06:12 AM	#5
pjs Colonel 275 Rep 2,774 Posts Drives: i8 Join Date: Oct 2008 Location: NORTH iTrader: (1)	Bump - Any more thoughts guys? Especially from the mechanically minded?
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10-25-2010, 06:16 AM	#6
willhollin Major General 268 Rep 9,915 Posts Drives: VW T5 Join Date: Apr 2008 Location: Worcestershire iTrader: (1) Garage List 2007 BMW E92 330d SE [10.00] 2010 Transporter T5 ... [0.00]	Charming. __________________
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10-25-2010, 06:29 AM	#8
willhollin Major General 268 Rep 9,915 Posts Drives: VW T5 Join Date: Apr 2008 Location: Worcestershire iTrader: (1) Garage List 2007 BMW E92 330d SE [10.00] 2010 Transporter T5 ... [0.00]	A weep would be just a small amount escaping. I imagine there is a gasket between the two sides of the diff so this could be the problem. Oil based products would tend to spread / creep over the surrounding areas. Why not clean it off with a de-greaser (fairy liquid might do it) and see if it happens again. __________________
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10-25-2010, 11:56 AM	#9
JonnySi BMW Technician 6 Rep 197 Posts Drives: BMW Join Date: Jun 2010 Location: England iTrader: (0)	Its just a weep, BMW warranty will not do it because it is not dripping. Also there is no gasket between the diff body and back plate. It is a sealer which takes 24hrs to dry.
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10-25-2010, 12:54 PM	#10
pjs Colonel 275 Rep 2,774 Posts Drives: i8 Join Date: Oct 2008 Location: NORTH iTrader: (1)	cheers guys, i'll try the degreaser to clean it up, and maybe put a bit of clear silicone on the joint
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08-04-2014, 08:22 PM	#11
Pr335bob Captain 38 Rep 753 Posts Drives: Black on black e92 Join Date: Oct 2011 Location: Puerto Rico USA iTrader: (0)	Any updates ?
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08-05-2014, 07:08 AM	#12
RichJ First Lieutenant 10 Rep 358 Posts Drives: E92 M-Sport 330i Le Mans Blue Join Date: Jan 2010 Location: South iTrader: (0)	This is exactly what i have albeit slightly worse. I've commented on this on a separate thread. I guess nothing to worry about until the leak becomes worse or starts dripping on the floor....
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08-13-2014, 06:40 AM	#13
RichJ First Lieutenant 10 Rep 358 Posts Drives: E92 M-Sport 330i Le Mans Blue Join Date: Jan 2010 Location: South iTrader: (0)	Any update on this?
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08-13-2014, 12:53 PM	#14
pjs Colonel 275 Rep 2,774 Posts Drives: i8 Join Date: Oct 2008 Location: NORTH iTrader: (1)	It was 4 years ago chaps. Can't remember. That car was ace but was always in for warranty work. Then someone crashed into it when it was parked and wrote it off!
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