Auto Service Professional

DEC 2018

Magazine for the auto service professional

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Page 51 of 61

50 A S P D e c e m b e r 2 018 T e c h n i c a l S e r v i c e B u l l e t i n s MERCEDES-BENZ MERCEDES MELTDOWN This bulletin applies to all Mercedes-Benz models equipped with 722 transmissions. Operating the accelerator and brake pedals at the same time to heat up the automatic trans- mission fluid more quickly for the purpose of testing or performing repairs on the transmis- sion has adverse effects on the transmission and/ or the torque converter. ermal overload on the transmission and/or torque converter will result from applying both pedals simultaneously. In short, don't do it! FORD STUBBORN CLIMATE CONTROL Some 2011 Ford Edge vehicles equipped with the front control interface module (FCIM) 4.2 inch display screen may exhibit the climate control system coming on at engine startup, even though the owner shut the system off prior to turning off the ignition. Reprogram the FCIM with the latest calibra- tion using IDS release 72.01 or higher. Files may be obtained at DODGE BLUETOOTH BLOCKOUT This bulletin applies to 2012 Dodge Char- gers built between Jan. 27, 2012, and Jan. 31, 2012, and equipped with UConnect Voice Command with Bluetooth. e customer may experience no response from the voice recognition button on the steer- ing wheel or they will not be able to enter into the phone screen on the radio. e condition is caused by the HFM not communicating. Follow the procedure in TechCONNECT for proper removal and installation of the HFM. Go to Service in TechCONNECT, then go to 08- Electrical/8E – Electronic Control Modules/ MODULE, hands-free/removal and installation. Basically, you're going to remove the program and reinstall it. GENERAL MOTORS PAY ATTENTION When servicing 2012 and earlier GM vehi- cles that feature stainless steel-clad wheel nuts, using a shallow socket wrench can easily deform or crack that stainless steel cover. If the wheel nuts appear to be clad in stain- less steel, be sure to use only a six-point deepwell socket wrench that provides full depth contact with the nut. is may sound elementary, but paying atten- tion to this can avoid needless cost for the shop by having to replace the wheel nuts and prevent- ing an unhappy customer. Using an improper, shallow socket wrench can easily damage stainless steel clad wheel nuts.

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