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Are cylinder sleeves bad for your BMW engine?

There seems to be a bit of controversy surrounding cylinder sleeves and BMW engines.  Oil consumption, excessive noise, sleeves dropping, Alusil blocks not liking sleeves – you name it.  I took some time to talk to our machine shop foreman, (the man with 50 years experience) Tony (VAC owner) and our manufacturing partners (Darton and LA Sleeve) about the drawbacks of using sleeves in the S54, S62 and S65 engines.

Short answer:  There are no drawbacks.

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VAC Walnut Blaster Service | 135i/335i/535i Intake Valve Carbon Cleaning

Walnut Blaster Service for 135i/335i/535i

Price: $599  (people say dealers charge $650-$800+)

About VAC’s Walnut Blaster Service:
We use factory BMW tools to perform this job.  These tools ensure the job is done right the first time and that there is no mess.  The intake manifold is removed and all ports are cleaned with BMW factory tools and BMW approved walnut shell media.  The manifold goes back on and everything is tested/checked.

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