Possible SBC Failure?
Thread Starter
Senior Member
Joined: Apr 2008
Posts: 295
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From: Long Island
2018 GLC 300 4Matic
Possible SBC Failure?
I think my SBC may be on the way out but I just wanted to hear other's opinions on the matter. I replaced my front brakes & rotors 2 months ago and a local indy shop that is a MBCA technical member. I then had Service A performed 1 month ago at a dealer. Just for background info, I had the rear pads & rotors replaced last year and Service B done at the same indy shop. 2 weeks ago I started noticing a mushy brake pedal feel whenever I stepped on the brakes and a noticeable decline in braking, almost as if my brakes were on their way out.
Nothing was reported by the dealer after Service A and my front brakes are new and rears only a year old (rears wear slower than fronts) so I found this mushy pedal feel odd. Today as I was parallel parking a message appeared on the instrument cluster but not the Red SBC message of death, rather this message said "Service Brake Service Required" against the normal background color of the cluster. Can this be an early warning sign that my SBC is in need of replacement? I have a 2006 E350 4matic so I am still within the 10 year warranty even though the CPO warranty is over.
Nothing was reported by the dealer after Service A and my front brakes are new and rears only a year old (rears wear slower than fronts) so I found this mushy pedal feel odd. Today as I was parallel parking a message appeared on the instrument cluster but not the Red SBC message of death, rather this message said "Service Brake Service Required" against the normal background color of the cluster. Can this be an early warning sign that my SBC is in need of replacement? I have a 2006 E350 4matic so I am still within the 10 year warranty even though the CPO warranty is over.
