02 E53 coolant leak back of M62 eng
 

Hi,
I have a E53 w/M62 Eng .. 127 k miles. I noticed a coolant leakbottom of trans bell housing . last year I repl the valley pan, o rings coolant pipes. Is there any were else were coolant can be leaking from?

Did you also replaced any of the coolant hoses in the back of the engine?

I ck the hoses @ the RR.. They are all OK . even the pipe that connects to heads are OK.

L@@king @ some images on the net back of the M62 eng.. Theres a plate odd shape along w/ gasket under plate. In order to get to that plate (back of eng.), the trans has to drop down .

werd. ive read about this too.

One last twist: on the the M62 V8 Engine from BMW there is a coolant plate on the back of the engine that is only accessible with the flywheel removed. This plate likes to leak coolant:

http://integrityfirstauto.com/2014/w...%20Leaking.jpg

Time to get some Prestone stop leaks. LOL

mite aswell change out the rr main seal while im in there. wish I had a elec lift. would make life easier.

what a headache:banghead:

I would check and recheck and recheck all other potential leak points even those I had worked on as far more likely to be the cause.

Ya I was thinking checking the valley pan & coolant pipes again.

That's a slippery slope, "While I'm in there". Since you are dropping the trans you might want to do the axles, maybe the transfer case, maybe the guibo, and depending on the mileage perhaps a rebuild of the trans.

Seems like it's worth confirming the need before starting all that work.

a small inspection camera could be fit up there to take a look
Or pull the starter and check with a mirror.

ill borrow a friends borescope & l@@k through the bottom holes of bell housing. also double ck the valley pan & coolant pipe o-rings.