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BMW Diesel Owners / Enthusiasts
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  #1  
Old 06-23-2015, 07:17 PM
thatwyteguy thatwyteguy is offline
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Mein Auto:
Valve cover carbon

So the dealer wanted to replace my valve cover because of carbon buildup. They also wanted to replace the intake manifold. They say they cannot clean them. Im not and idiot so i found someone who can for pretty cheap.
I pulled off the intake last week and did notice the intake was caked with carbon as well as the EGR. I cleaned the egr but dont have the tools for the intake.
Has anyone seen a valve cover get THAT much carbon buildup that it could cause an issue?
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  #2  
Old 06-24-2015, 10:52 AM
Dean_S Dean_S is offline
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Mein Auto: 2015 535d x-drive
What engine, year and miles?
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Old 06-24-2015, 12:18 PM
thatwyteguy thatwyteguy is offline
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Sorry. 2010 335d with the M57 engine. About 50000 miles
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Old 06-24-2015, 01:48 PM
Dean_S Dean_S is offline
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When you say valve cover, do you mean the intake manifold?

The ports on the head also get fouled. The procedure that is meant to be performed also cleans the valves with walnut shell blasting and clocking the engine to have the valves closed as the work is done. Cleaning or replacing the intake manifold does not address that.
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2015 335d X-drive Space Grey
BMW full diameter compact spare and jack kit
18" wheels, tire repair kit and compressor
Euro spec aspheric mirrors
High security McGard wheel locks [from Europe only]
Full XPEL package
AquaPel rain repellent
Opti-Lube additives
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  #5  
Old 06-24-2015, 02:33 PM
thatwyteguy thatwyteguy is offline
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No i mean the valve cover. Sounds stupid i know. The intake is also clogged up. Im getting a full walnut blast in july done but wasnt sure if id be wasting money having him pull off the valve
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  #6  
Old 06-24-2015, 03:33 PM
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3ismagic# 3ismagic# is offline
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Your dealer is either an idiot or is lying to you.
The carbon build-up can absolutely be cleaned. There is a BMW service bulletin about it. It's been posted here perhaps someone can point you to it.
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Old 06-24-2015, 03:34 PM
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3ismagic# 3ismagic# is offline
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If still under warranty it will be covered. If not you should push extremely hard to get it cleaned for free. My understanding is that most people have been able to get it done for free even if out of warranty under good will.
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  #8  
Old 06-24-2015, 05:26 PM
thatwyteguy thatwyteguy is offline
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Ill try to push them to clean it for free. If not, i found a guy that has the equipment and will do it for around 500.
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