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BMW blowing smoke? Valve stem seals the definitive test.
BMW are renown for their engines both because they are efficient and powerful and because some of them fail at the Valve stem seals and have very costly repairs.
I show you a great test here to see if your valve stem seals have failed.

Affiliate links to buy:
The BMW Store Awesome Genuine items:

The Magnatec Oil I used and like. Not all Oils can be used in Diesel as well as Gas/Petrol cars. This can:
This oil also is great with newer BMW's with stop start technology as it clings to parts longer.
Torx Screw driver set:
Torx Sockets: **Great for every BMW owner**.
Stanley Basic Tool Kit 65 piece
Stanley Basic Tool Kit 210 piece

Thanks for watching this Mark's reviews and Tutorials video. Mark is not a trained mechanic. Just a car guy that loves to drive and work on cars. What I do here may not work on your car and I am not intending to give professional advice for you to work on your car. But if you do know a bit about cars then hopefully watching these videos will help you to sort out what is going on with your car. Mark is not liable or responsible for any damage you do or things that happen to your car or yourself.
Cars are complex and dangerous things and not only can you be hurt working on them but you can also do serious and expensive damage to your car.
Cars should be worked on by qualified people, don't over reach.

Talk to a qualified mechanic if you are in any doubt.

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