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codesx codesx is offline
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Posts: 570
Join Date: Feb 2018
Car: 2008 335i Vert (E93, N54)
Default Oil and Coolant leakage, after being garaged for the winter (and worked on) - 04-09-2019, 01:46 PM

Hi all,

Just tossing this out there (shot in the dark) in the hopes someone has had similar and I can benefit from your experience.

My 2008 335i sat in my garage over the winter.
I replaced the VCG, 2 OFHGs and 2 Oil Cooler line o-rings.
None of this is leaking now.

However, the under-body of my car is soaked in coolant and fresh oil.
I have all cowling off the under and upper, so visibility is about as good as it gets.
I washed it clean and then drove it to a mechanic for more insight (a better look from the bottom).
They cannot even trace the source it's already all so wet.

They are looking at washing the engine in their garage, then adding something to the oil that a UV light would help expose.

Zero oil or coolant is visible from the top. It's not coming from the crank seal. The only rad hoses I bumped are the upper, and they are still good. (remove and install the rad fan)

It appears to be showing up below the passenger side, roughly in the middle w/ respect to front/back of engine bay.

Has anyone else had similar?
Is there some common part that shifts/breaks when doing the above work?

Wherever this is coming from, it was not leaking there prior to parking it over the winter and doing the above mentioned work.

Thanks.


----

2008 335i Convertible, E93, N54, A/T (190,000+ km)
Wheels: 322 | Tires: R.275/35r18, F.245/40r18
TUNE: JB4 Map 1 | PUMP BEF | 94 Octane | @15 PSI
BMS: JB4 | 5" FMIC | OCC | DCI
xHP Stage 3 (v2.0)
VRSF CP | HKS BOV
NGK 5992 Plugs @ .020
RB PCV Valve

Pending Install:
BMS WMI

Maintenance:
2018 - A/T Replaced | Plugs | Ign Coils | Walnut Blasting
2019 - VCG | OFHG & O-rings | Alternator w/ Clutch Pulley | Water Pump & T Stat
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