2017 Mercedes-Benz S550 technical service bulletins
153 technical service bulletins and manufacturer communications cover the 2017 Mercedes-Benz S550, including one warranty extension.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Engine
- Customer complaints relating to automatic transmission 725.0 (NAG3 Classic /9G‑TRONIC automatic...
- Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is...
- Only vehicles with a variable transfer case are affected
- Clanking noise from the area of the speakers in the doors
- Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G‑TRONIC automatic...
- During part of the steering movement, it feels heavier or more difficult to steer in the same spot every time
- Tailgate opens unintentionally
- A popup is seen on the HU with the message "data connection temporarily not available". Potentially...
- This document is intended as a pre-case diagnostic reference for transmission related concerns
- Mercedes-Benz USA is currently experiencing limited availability of transmission fluid specification ATF...
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements...
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...
- The customer requests deactivation of the N112/9 HERMES communication module Note: Deactivation of the...
- After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the...
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...
- There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper...
- The part numbers listed in the chart below should no longer be installed, and any existing stock must be...
- Headlamp, front fog lamp leaky or fogged
- When closing the door, the side window may remain slightly open (short stroke position)
- Headlamp, front fog lamp leaky or fogged
- Headlamps leaking or fogged
- Check engine light on with the following fault is current in the VGS Control Unit: P084300 Oil pressure...
- Customer states the AC either does not cool/has poor performance or heat is insufficient
- Customer states the AC either does not cool/has poor performance or heat is insufficient
- (Original LI document #: LI27.35-P-079039) Clicking noises from the electro-hydraulic control unit (EHS)...
- The flap of the reversing camera opens and closes by itself during forward travel several times during the...
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Possible complaints about shift quality, issues with learning the park lock, and slipping/rinse entries in...
- The result from the XENTRY battery test does not match the current state of the battery
- Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick...
- After a software update of component LIB48_222
- Possible humming noises from the drivetrain in the area of the rear axle, especially during tight...
- Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position...
- After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle,...
- Headlamp, front fog lamp leaky or fogged
- A popup is seen on the HU with the message "data connection temporarily not available". Potentially...
- A clicking/ticking/taping noise from underneath the vehicle with engine off during ECO stop event or after...
- Possible humming noises from the drivetrain in the area of the rear axle, especially during tight...
- The message "Device detected at diagnostics connection See Owner’s Manual" appears sporadically in the...
- During a phone call, the called party has difficulty understanding/cannot understand the driver, or...
- The flap of the reversing camera opens and closes by itself during forward travel several times during the...
- Power train
- Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements
- Fuel door may require several attempts to open
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- The flap of the reversing camera opens and closes by itself during forward travel
- Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements
- After a control unit replacement of "N112/9
- Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick...
- Rear lamps fogged up/not leaktight
- Only vehicles with a variable transfer case are affected
- Washer fluid system leaks
- "Active Emergency Stop Assist Currently Unavailable" and "Active Steering Assist Inoperative" instrument...
- Tension-releasing impact of the propeller shaft with the force-free in D "KID" function, after vehicle has...
- Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements
- Headlamp or front fog lamp leaky or fogged
- To insure vehicle down time is kept at a minimum and all required information is available when case is...
- Headlamps fogged or droplets forming
- Electrical system
- In our continuing efforts to ensure the proper performance and quality of your vehicle, we are writing to...
- Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G-TRONIC automatic...
- As previously reported, to enhance the satisfaction of our customers, avoid further costs of litigation...
- Electrical system
- Crease formation on genuine leather seat covers in vehicles with low mileage ⢠Objects left on the seats...
- The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle
- The Mercedes me connect services cannot be activated
- Engine and engine cooling: exhaust system
- Suspension
- This extended warranty applies to the following condition that may necessitate the repair or replacement...
- Creaking noise from side bolster when load applied to seat cushion of front seats
- The garage door hand transmitter cannot be initialized with the integrated garage door opener in the...
- The range of the integrated garage door opener (GTO) is too short
- MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 – Boost Pressure is Too High"" "
- The mobile phone address book may not be transferred completely to the multimedia system COMAND, Audio 20,...
- Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warning
- Touch pad: Search lighting does not dim or does not turn on.
- Model indicator index.
- Electrical system: software
- NTG5.5
- Harsh engagement when changing gear range from P to D or R
- Shifting complaints and transmission fault codes in vehicles with transmission 725.0
- Xentry Battery Tester results disagree with workshop assessment
- Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect...
- Lamp unit fogged or droplets forming
- Headlamps fogged
- To enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its...
- 5 to 4 coasting downshift
- The purpose of this letter is to advise you of additional benefits that Mercedes-Benz USA, LLC ("MBUSA")...
- Event memory in the instrument cluster mileage readings intermittently inaccurate
- Information Label on Tire Sealant
- Throttle lift-off clunking noises at drive shafts of front axle
- Throttle lift-off clunking noises at drive shafts of rear axle
- High-voltage battery warning message" in instrument cluster
- Electric range is reduced after brief period
- NTG 5.5 head unit
- Update fuel system control unit (FSCU) software
- Update HERMES control unit software
- Navigation system permanently displays "Activating".
- Map pocket on front seat backrest trim does not close.
- High voltage battery warning message in instrument cluster.
- Gasket may settle causing a slight oil leak.
- Vehicle cannot be opened via Keyless-Go and radio remote control
- IPhone mobile phone: Various complaints after software update to iOS8
- The trunk lid sometimes does not open completely and does not close (completely)
- The animation in individual vehicle settings such as, e.g. mirror folding function or seat belt adjustment...
- When on rough roads and with side loads applied to the center console (leg support) cracking noise may...
- Engine diagnosis warning lamp (check engine light
- Minor leaks at the oil duct of the left or right cylinder head of engines 157, 276 and 278
- Engine rattling noise after engine start for several seconds
- Squeaking noises from the service brake when braking
- Thumping/rattling/clattering noises from area of rear axle
- The vehicle drops at the front axle on one or both sides by more than 2 cm overnight.
- Wind noises at the front door above 70 MPH.
- Gap between cap and outside door handle is wedge shaped on driver door
- Rear door quarter window roller blind fails to extend.
- The outside mirror jolts when retracting/extending and makes a grinding noise.
- Sound system: Intermittent loss of sound after engine start
- Squeaking noises from the front axle when braking
- Surface damage on steering wheel trim
- The side markers light up continuously.
- Display message in instrument cluster "Additional Battery
- Message in instrument cluster "DISTRONIC PLUSCurrently Unavailable
- Creaking noises from the area of the air suspension strut on the front axle when driving over bumps with...
- Trunk lid closes too quickly.
- Mobile phone cotacts are not transferred completely.
- FC 2783 (Friction power of torque converter lockup clutch is too high) or FC 0741 (Actuation of torque...
- Customer experiences low battery conditions, resulting in jump starts, and eventually requiring battery...
- Single, throttle lift-off, clunking noise from the side shaft when starting off (audible at the wheel)
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