[Bimmer28312]

Hey guys, so having my Dinan exhaust and downpipe installed and my Mechanic noticed yellow fluid link all over. Is this just poor sealant on the pump?

[ORIGIN M.]

I'd clean it up, and keep an eye on it to see if it continues.

[Bimmer28312]

Almost skipped out on the whole install tonight but went through with it. Only have 609miles so getting close the break in period

[ORIGIN M.]

Nice!

Pictures?

I might have to until I knew if it was really leaking or not.

[Tano]

These cars have electric power steering, so this shouldn't be a hydraulic leak from it. Maybe a kind of grease possible from the mechanic part?

[Bimmer28312]

Well he noticed it on the lift before he started to work on it so it wasn't anything he did. Again it was just the exhaust and DP install

[Oakleyguy]

Is it a liquid? or is it like a dried sealant?

If liquid, take it to the dealership for inspection.

[Louzy77]

Originally Posted by Bimmer28312

Hey guys, so having my Dinan exhaust and downpipe installed and my Mechanic noticed yellow fluid link all over. Is this just poor sealant on the pump?

I noticed this too has anyone found the root or rectified it? Thanks

[omasou]

It's cosmoline. The dealers remove most of it in prep.

Cosmoline is a yellowish, light-amber, or greenish colored ointment-like mass, having a slight fluorescence, petroleum-like odor and taste. It is similar to petroleum jelly in properties, appearance, and thickness. It is the purified residue obtained from the distillation of petroleum oils.

Chemically, cosmoline is a homogeneous mixture of oily and waxy long-chain, non-polar hydrocarbons. It can range in color from white to yellow, and can differ in viscosity and shear strength. Cosmoline melts at 113–125 °F (45–52 °C) and has a flashpoint of 365 °F (185 °C).

Its most common use is in the storage and preservation of firearms. Previously, cosmoline was used to preserve other things. Objects the size of entire vehicles could be preserved for future use with cosmoline.

[toastie]

Originally Posted by omasou

It's cosmoline. The dealers remove most of it in prep.

Cosmoline is a yellowish, light-amber, or greenish colored ointment-like mass, having a slight fluorescence, petroleum-like odor and taste. It is similar to petroleum jelly in properties, appearance, and thickness. It is the purified residue obtained from the distillation of petroleum oils.

Chemically, cosmoline is a homogeneous mixture of oily and waxy long-chain, non-polar hydrocarbons. It can range in color from white to yellow, and can differ in viscosity and shear strength. Cosmoline melts at 113–125 °F (45–52 °C) and has a flashpoint of 365 °F (185 °C).

Its most common use is in the storage and preservation of firearms. Previously, cosmoline was used to preserve other things. Objects the size of entire vehicles could be preserved for future use with cosmoline.

"Cosmoline is a yellowish, light-amber, or greenish colored ointment-like mass, having a slight fluorescence, petroleum-like odor and taste." Someone tasted this to write up it's characteristics....

[twin fed]

I have it too. Gonna mention it to the dealer when I go in for service.




I also have some oil leaking from the sensor in the bottom of the oil pan

[David1]

This is not a leak. It is just cosmoline that has settled there from when that stuff gets removed at the port. There is no way for them to get it out of everywhere. It is just a glorified waxy product.

[Wangspeed]

+1. Looks like cosmoline to me. Go to the track and burn it off. German cars stink of it their first time out. When it stops smelling like cosmoline, it's properly broken in.