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MB Paul
MB Paul, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3567
Experience:  Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes
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Need to know what size of I need to loosen up front caliper

Customer Question

need to know what size of allen I need to loosen up front caliper of an 2007 R350 to replace the pads
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: i have a 9mm allen but seems its much bigger
JA: Anything else you think the mechanic should know?
Customer: no
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Mercedes Mechanic about your situation and then connect you two.
Submitted: 4 months ago.
Category: Mercedes
Expert:  AZTechBrian replied 4 months ago.

According to my software, it states 9mm or 3/8". Have you tried a 3/8"?

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