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MK7 (bus) coolant and oil leaks above starter

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MK7 (bus) coolant and oil leaks above starter

Postby Mark_VM07 » Mon Feb 23, 2026 1:08 am

Hi,

Appologies if there are posts on this topic already. Is the part number for the coolant hose, that sits above the start 6C1118C266AD. I just want to confirm before buying an incorrect hose. The engine has some oil leaks in this area. Given that the starter motor replacement fix is a mission, should I also take steps to fix some oil leaks while the starter motor is out. Are there any discussion posts on how to identify and fix engine oil leaks in this area. Heat from the engine and leaking oil are degrading the protective tubing of electrical wires, and I assume will also bake hard the wires themselves. In the attached photos, you may see where I have used garden hose to recover the wires, is this a bad idea, should I buy the correct protective tubing.

Any assistance will be gratefully appreciated.

Some photos and teh part image from the internet is attached to help explain the location on the vehicle.
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Re: MK7 (bus) coolant and oil leaks above starter

Postby trnx » Mon Feb 23, 2026 3:59 am

Put the VIN into Catcar or Autodoc - make sure you are looking at the right diag etc etc.
Better if you show the yr of vehicle etc etc can be in the signature.
There's several types of Mk7. A change occured in Sept 2011.
Mk 7 E5 DPF RWD XLWB SRW
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