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2012 Mercedes-Benz S-Class Technical Service Bulletins (TSBs)

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TSB Date Problem Area TSB Text
05/07/18 NHTSA ID: 10135639
TSB ID: LI54.10-P-060034

Vehicle cannot be unlocked (cl), engine does not start - 12v starter battery discharged
10/10/14 NHTSA ID: 10056233
TSB ID: LI-30-20P058689

Xentry (mercedes): in the instrument cluster, an esp warning due to implausible accelerator pedal signal received from engine control unit. model 2012 172, 212, 218, 207, 204.
02/12/13 NHTSA ID: 10050901
TSB ID: LI46-30P054912

Mercedes (xentry): at the wiring harness for power supply, and in combination with noises, with reduced power assistance when steering, oil is seen at power supply connector of electrohydraulic power steering pump. models 221 and 216. no
07/17/12 NHTSA ID: 10044601
TSB ID: LI-47-40-P053871

Xentry (mercedes): check engine light (cel) is activated; stored in engine control unit is very fine leak. automatic fuel tank leak test software is sensitive and can produces an erroneous diagnosis. models 204, 212, 218, 221, 216,and 166
03/09/12 Engine NHTSA ID: 10043294
TSB ID: SCB-2011120005

Mercedes: during the production process of some vehicles, the electronic ignition switch was damaged.
05/07/18 Electrical and Air Conditioning NHTSA ID: 10135871
TSB ID: LI07.04-P-061585

Check engine light with dtc 256809: premair sensor has a malfunction
NHTSA's feed only includes summaries. For the full text of TSBs:

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05/07/18 Electrical and Air Conditioning NHTSA ID: 10135604
TSB ID: LI80.61-P-061174

Vehicle cannot be opened via keyless-go and radio remote control
05/07/18 Electrical and Air Conditioning NHTSA ID: 10135628
TSB ID: LI82.70-P-060004

Iphone mobile phone: various complaints after software update to ios8
05/07/18 Electrical and Air Conditioning NHTSA ID: 10136029
TSB ID: LI68.05-P-059193

Sentex gate operator with clik card remote not compatible with homelink
04/23/18 Electrical and Air Conditioning NHTSA ID: 10134789
TSB ID: LI08.30-P-057146

Various fault codes logged in power electronics control unit
03/16/16 Electrical and Air Conditioning NHTSA ID: 10059864
TSB ID: 2012080004

Summary to be provided on a future date.
12/12/14 Electrical and Air Conditioning NHTSA ID: 10056472
TSB ID: LI46-35P059241

Xentry (mercedes): after engine has started, several issues occurs, an acoustic warning sounds is heard, the instrument cluster displays warning message power steering malfunction, service required. steering system is sluggish. model 117
05/09/14 Electrical and Air Conditioning NHTSA ID: 10055333
TSB ID: LI54-15-P057373

Xentry (mercedes): the fuse and relay boxes (srb) in engine compartment or rear compartment has a malfunction and disruptions to communication paths causing a no start in vehicle. model 2012-2013 204, 207, 212, 218, 231, 246, 176, 117, 1
02/11/13 Electrical and Air Conditioning NHTSA ID: 10050865
TSB ID: SC-2012080004

Mercedes: the power electronics module capacitance loss is due to the variability of capacitor quality combined with thermally variable continuous loading and need power electronics module software updated and replace power electronics mod
02/11/13 Electrical and Air Conditioning NHTSA ID: 10050866
TSB ID: LI54-10P-054713

Mercedes (xentry): when start attempt is made, the activation of hv contactor in hv battery is suppressed and not able to start vehicle when thermomechanical loads fails in 150 a fuse in hv battery and hv battery needs replacing. models
12/12/12 Electrical and Air Conditioning NHTSA ID: 10048180
TSB ID: SB-2012020001

Mercedes: engine control module software, for diesel engine vehicles, fails to meet current obd specifications and will need to be updated. models 2012 166, 221.
04/24/12 Electrical and Air Conditioning NHTSA ID: 10043730
TSB ID: SB-2011110013

Mercedes: update high voltage battery software. model 221 model years 2010-2012.
05/07/18 Other NHTSA ID: 10136035
TSB ID: LI82.30-P-059239

Complaints about poor wiping effect of winshield wiper
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05/07/18 Other NHTSA ID: 10135760
TSB ID: LI91.10-P-065541

Friction noise on left side of stretch cover for both driver seat backrests when deflating dynamic seat
03/16/16 Other NHTSA ID: 10059786
TSB ID: P-B-82.85/693J

Summary to be provided on a future date.
03/16/16 Other NHTSA ID: 10059557
TSB ID: 2012010006

Summary to be provided on a future date.
08/10/12 Other NHTSA ID: 10045027
TSB ID: LI-72-10-P053599

Xentry(mercedes): on some vehicles, can not engage or close front door properly. models 197.377. no model years listed.
04/24/12 Other NHTSA ID: 10043726
TSB ID: SB-2012010006

Mercedes: tire pressure monitoring coding needs to be checked and updated if necessary.

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Mercedes-Benz S-Class TSBs (Technical Service Bulletins)

Some things are often misunderstood about recalls and technical service bulletins (TSBs). Plus a disclaimer.

  1. Recalls do not have to be issued only because something is prone to failure. NHTSA (a government agency) can only require a recall if a failure will affect safety, emissions, fuel economy, or compliance with some other regulation or law. Manufacturers can voluntarily recall cars for problems that do not affect these, though.
  2. Recalls often apply to only some cars of a specific model year, rather than all of them. You should receive a letter from the manufacturer if your car has been recalled. You can also check with the dealer, which will know which (if any) recalls pertain to your car.
  3. The primary purpose of TSBs is to inform dealers about known problems with a car and how to fix them. They are not the same as recalls. As with recalls, TSBs often only apply to some cars, not the entire model year.
  4. Dealers often will not provide a preventive repair just because a problem described in a TSB might happen to your car. They'll usually want to observe symptoms that the problem is already affecting your car.
  5. Even if there are symptoms, a manufacturer doesn't have to pick up the cost of a TSB repair if the car is out of warranty, though sometimes they do.

We provide the text of recalls and TSBs as provided by NHTSA. There can be errors in the text. If you sign up for notifications in My Garage, we will try to get these to do, but for various reasons (some beyond our control) cannot guarantee you will receive them. When in doubt about a recall or TSB, contact the dealer.