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  #1  
Old 07-24-2013, 12:03 PM
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W201 With 7 Holes In Rear Rotor, Not 6

I ordered a set of rear rotors from AH this week, only to find that the Bosch set that shipped had 6 holes, not 7.

On my car (89 190d), there are 5 holes for the lug bolts, 1 hole for a locating dowel, and 1 hole for a screw.

The Bosch discs did not have the locating dowel screw. They're obviously not compatible with my hubs. Does anyone know if the locating dowel went away in later w201s?

AH is claiming Bosch issued a part supercession rule for these.
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  #2  
Old 07-24-2013, 01:25 PM
JamesDean's Avatar
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Join Date: Apr 2005
Location: NE Ohio
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I believe my 190E (MY93) has the locating dowels... They might be wanting you to leave the screw out.. and use the hole for the locating dowel.
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  #3  
Old 07-24-2013, 06:35 PM
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I agree. with the 5 lug bolts holding the rotor between the wheel and the axle, nothing is going to move.
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  #4  
Old 07-24-2013, 06:39 PM
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Quote:
Originally Posted by vstech View Post
I agree. with the 5 lug bolts holding the rotor between the wheel and the axle, nothing is going to move.
My 190E is missing all of its rotor set screws. Its been getting along just fine lol.
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Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

82 300SD 145k
82 300SD 265k
87 420SEL 230k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
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  #5  
Old 07-25-2013, 03:56 PM
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I believe since MB does the wheel fasteners backwards (bolts instead of studs and nuts), the rotor needs something to keep it from turning on the hub while locating the wheel. A set screw or locating dowel will keep the rotor lined up if the wheel is turned to line up the bolts. Yes the locating tool can be used, but how many MB owners still have one? ...Rich
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