Join Date: Jul 2006
Location: Easton, MD
Vehicle: 2012 SLK 350 (R172)
Mentioned: 4 Post(s)
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On the R172 SLK you have to hold down both phone buttons on the right side of the steering wheel and the OK button on the left side of the steering wheel at the same time.
The attached PDF is correct but the videos are wrong for SLKs.
The pdf calls the right side steering wheel buttons 'Accept' and 'End' phone calls buttons.
I just did the above this morning to enter the service menu on my r172 to set the 'fitting position for rear brake pads'.
2012 SLK 350, Mars Red, Ash, 7G Automatic, Premium Pkg I, Lighting Pkg, Multimedia Pkg, Sport Pkg, Digital Dual Zone Climate Control, Panorama roof, Air Guide Windstop, Chrome Bonnet Fins, smartTOP roof module v1.42, Akebono ceramic front brake pads, TRW ceramic rear brake pads, DIY Backup Camera
Other Ride: 2016 GLA 250 4Matic, Cirrus White, Ash, Premium Pkg, Multimedia Pkg, Panorama Sunroof, Bi-Xenon Headlamps, Blind Spot Assist
Last edited by WhiteRabbit; 03-30-2015 at 04:39 PM.
Reason: Add more details