Technical Service Bulletins

Accessories Control Systems
- MERCEDES Me Connect Inoperative/Vehicle Offline (LI82.95-P-076991)
- COMAND/MBUX USB Map Update: Aborts, Does Not Load To Head Unit (LI82.85-P-071933)
- Incorrect Time And/Or Instrument Cluster Message "SOS, Service Not Activated" And/Or MERCEDES Me Connect Services Nonfunctional (LI82.85-P-071453)
- COMAND Download Manager (DLM): Download Aborted, Does Not Load To Selected USB Drive (LI82.85-P-071912)
- NTG 5*1 COMAND - Scrolling Stations From The Steering Wheel Controls Does Not Function Intermittently (LI82.85-P-066013)
- MBRACE System Software Update (LI82.95-P-070522)
- Audio 20: Apple CARPLAY Displays Pixelated Image (LI82.85-P-069318)
- Message "A Data Plan For Internet Services From MERCEDES Me Portal Is Needed To Use This Service" In The Head Unit (LI82.85-P-069515)
- Audio 20: Welcome Light Settings MISADJUSTED After Bus Idle (LI82.85-P-069261)
- Vehicle Does Not Start, Battery Discharged. (LI54.10-P-066344)
- GARMIN Map Pilot: NTG5*1 - FRESHMAP Not Possible (LI82.85-P-066702)
- Message In Instrument Cluster "Collision Prevention Assist Inoperative" (LI54.70-P-066353)
- Malfunctions Of Various Control Units And/Or On-Board Power Supply Problems Caused By Water In The Control Unit Tray Under The Driver/Front Passenger Seat (Dislocated, Pinched Or Leaking Condensation Hose) (LI83.00-P-052510)
- Instrument Cluster: Hold Indicator Continues To Be Lit For A Few Seconds Although The Vehicle Is Moving (LI54.30-P-066154)
- Resetting The Trip Computer Has No Effect On The Indicated Electrical Range (LI54.50-P-063731)
Anti-Lock Brakes
- Vehicle Starts Off On An Incline With Higher Engine Speed From Hold (LI42.47-P-068825)
- Squeaking Noises From Area Of Front Axle Brake (LI42.10-P-066237)
Automatic Trans
- Clicking/Ticking Noise From Underneath The Vehicle (VERSION 1)
- Lubricating Oil Analysis Information (LI01.00-P-068886)
Auxiliary Emission Control Systems
- Malfunctions Of Various Control Units And/Or On-Board Power Supply Problems Caused By Water In The Control Unit Tray Under The Driver/Front Passenger Seat (Dislocated, Pinched Or Leaking Condensation Hose) (LI83.00-P-052510)
- I/M 240 Emissions Testing On Dynamometer (14.00/31)
Axle Shafts
- Throttle Lift-Off Clunking Noises At Drive Shafts Of Front Axle (VERSION 9)
- Throttle Lift-Off Clunking Noises At Drive Shafts Of Rear Axle (VERSION 7)
- Rattling Or Humming Noise When Steering (LI46.35-P-067339)
- Cleaning Axle Hubs When Installing Brake Discs (42.10/123A)
Battery Management Systems
- The Maximum Current On The Mode 2 Charging Cable Cannot Be Selected (LI54.10-P-066315)
Body Electrical
- Wiring Damage On More Than 10 Wires (LI54.18-P-072022)
Body Interior
- MERCEDES Me Connect Inoperative/Vehicle Offline (LI82.95-P-076991)
- The MERCEDES Me Connect Remote Services Nonfunctional After The Vehicle Is Not Used For An Extended Period Of Time (LI82.85-P-074724)
- MERCEDES Me Connect Services Cannot Be Activated Due To APN Network Configuration (LI82.85-P-074413)
- NTG 5*1 COMAND - Scrolling Stations From The Steering Wheel Controls Does Not Function Intermittently (LI82.85-P-066013)
- Vehicle Does Not Start, Battery Discharged. (LI54.10-P-066344)
- Message In Instrument Cluster "Collision Prevention Assist Inoperative" (LI54.70-P-066353)
- Malfunctions Of Various Control Units And/Or On-Board Power Supply Problems Caused By Water In The Control Unit Tray Under The Driver/Front Passenger Seat (Dislocated, Pinched Or Leaking Condensation Hose) (LI83.00-P-052510)
- Instrument Cluster: Hold Indicator Continues To Be Lit For A Few Seconds Although The Vehicle Is Moving (LI54.30-P-066154)
- Resetting The Trip Computer Has No Effect On The Indicated Electrical Range (LI54.50-P-063731)
Brakes Control Systems
- Vehicle Starts Off On An Incline With Higher Engine Speed From Hold (LI42.47-P-068825)
Charging Systems
- Predicted Electric Range Does Not Meet Customer's Expectations (V3)
- The Charging Process Using The Mode 2 Charging Cable Cannot Be Started (LI47.70-P-073596)
- Electric Range Is Reduced After Brief Period (LI54.10-P-069831)
- Yellow Battery Symbol Fault Message In MULTIFUNCTION Display "Start Engine. See Owner's Manual" (LI54.10-P-067414)
- Charging Complaints - Initial Analysis - BR213 Plug-In And Newer (LI54.10-P-066316)
Collision/Avoidance
- Message In Driver Display: "Active Brake Assist Function Restricted" U111B87, U11A600, U0416FE, U151AFE, U151687, U145CFA (LI54.71-P-077857)
- Lane Keeping Assist: Fault Message In Instrument Cluster, Lane Keeping Assist Nonfunctional (LI46.10-P-065829)
- Blind Spot Assist Inoperative (LI54.71-P-056477)
- DISTRONIC Distance Control - Alleged Arbitrary Intervention (LI54.70-P-066813)
- Message In Instrument Cluster "Collision Prevention Assist Inoperative" (LI54.70-P-066353)
Communication Devices
- MERCEDES Me Connect Inoperative/Vehicle Offline (LI82.95-P-076991)
- B129C00 - Instrument Cluster Warning: SOS Inoperative (LI82.85-P-076800)
- The MERCEDES Me Connect Remote Services Nonfunctional After The Vehicle Is Not Used For An Extended Period Of Time (LI82.85-P-074724)
- Garage Door Opener Cannot Be Programmed (LI68.05-P-060306)
- MERCEDES Me Connect Services Cannot Be Activated Due To APN Network Configuration (LI82.85-P-074413)
- COMAND/MBUX USB Map Update: Aborts, Does Not Load To Head Unit (LI82.85-P-071933)
- COMAND Download Manager (DLM): Download Aborted, Does Not Load To Selected USB Drive (LI82.85-P-071912)
- Cracks Appear On Touchpad Surface With No Sign Of External Force (LI54.21-P-068464)
- NTG 5*1 COMAND - Scrolling Stations From The Steering Wheel Controls Does Not Function Intermittently (LI82.85-P-066013)
- MBRACE System Software Update (LI82.95-P-070522)
- MB App IHEART Radio Is No Longer Available After A Head Unit Update (LI82.85-P-068646)
- Info-Call/S24H-Call/MB Contact: Change Of Language Setting At Customer Request (LI82.85-P-068445)
- COMAND Online: Some Contacts On The Telephone Are Not Found Via Voice Control (LI82.70-P-066767)
- GARMIN Map Pilot: NTG5*1 - FRESHMAP Not Possible (LI82.85-P-066702)
- Message "SOS - Service Not Activated" In Instrument Cluster (LI82.85-P-065949)
Cooling System (Mechanical)
- ALS Engine Oil, Diesel Fuel, And Coolant Analysis Information (LI01.00-P-077591)
- Engines M276, M278 And M176 Minor Oil Leaks Or Oil Seepage (LI01.00-P-067802)
Cooling Systems
- ALS Engine Oil, Diesel Fuel, And Coolant Analysis Information (LI01.00-P-077591)
Differentials & Drive Axles
- Throttle Lift-Off Clunking Noises At Drive Shafts Of Front Axle (VERSION 9)
- Clattering/Knocking Noises From The Area Of The Rear Axle Upon Heavy Acceleration (LI35.30-P-075285)
- Throttle Lift-Off Clunking Noises At Drive Shafts Of Rear Axle (VERSION 7)
- Lubricating Oil Analysis Information (LI01.00-P-068886)
- 167 Clicking Or Ting Noise From Rear Axle (Ting Washer) (LI35.00-P-076385)
- 166 (PN A1664102901) With Drive Shaft Flange Leakage (LI41.00-P-069073)
Driveshaft & Universal Joints
- Rattling Or Humming Noise When Steering (LI46.35-P-067339)
Engine Control Systems
- "SOS Nonfunctional" Message In The Instrument Cluster Display. DTC B129C00 Stored In Control Unit HERMES (LI82.95-P-074844)
- Fault Code P089700 On 167 Chassis (LI28.00-P-075283)
- Vehicle Does Not Start, Battery Discharged. (LI54.10-P-066344)
- Service: Service Display Implausible (LI00.20-P-066887)
- Malfunctions Of Various Control Units And/Or On-Board Power Supply Problems Caused By Water In The Control Unit Tray Under The Driver/Front Passenger Seat (Dislocated, Pinched Or Leaking Condensation Hose) (LI83.00-P-052510)
- Engine Oil Level Above Max (LI18.40-P-066105)
- Vehicle Cannot Be Refueled (LI47.10-P-061579)
Entertainment Systems
- Symptoms With Driver Display And/Or Central Display (VERSION 2)
- MBUX Multimedia System (A26/17) - SIRIUSXM "My Favorites" Category Lost After Bus Sleep (LI82.60-P-075292)
- MBUX NTG7 Without Code 365 Navigation - Radio Station Logos No Longer Displayed After Software Update (LI82.85-P-076200)
- COMAND/MBUX USB Map Update: Aborts, Does Not Load To Head Unit (LI82.85-P-071933)
- COMAND Download Manager (DLM): Download Aborted, Does Not Load To Selected USB Drive (LI82.85-P-071912)
- Cracks Appear On Touchpad Surface With No Sign Of External Force (LI54.21-P-068464)
- NTG 5*1 COMAND - Scrolling Stations From The Steering Wheel Controls Does Not Function Intermittently (LI82.85-P-066013)
- Audio 20/COMAND Online USB 3.X Flash Drive Inoperative (LI82.60-P-070567)
- Audio 20: Apple CARPLAY Displays Pixelated Image (LI82.85-P-069318)
- Message "A Data Plan For Internet Services From MERCEDES Me Portal Is Needed To Use This Service" In The Head Unit (LI82.85-P-069515)
- The MB Apps Are Inoperative After A Head Unit Software Update (LI82.85-P-068738)
- MB App IHEART Radio Is No Longer Available After A Head Unit Update (LI82.85-P-068646)
- Info-Call/S24H-Call/MB Contact: Change Of Language Setting At Customer Request (LI82.85-P-068445)
- Audio 20: Symbols In The Status Line In The Central Display Can Overlap (LI82.85-P-068378)
- Audio 20: Apple CARPLAY Inoperative (LI82.85-P-067250)
- GARMIN Map Pilot: NTG5*1 - FRESHMAP Not Possible (LI82.85-P-066702)
- Malfunctions Of Various Control Units And/Or On-Board Power Supply Problems Caused By Water In The Control Unit Tray Under The Driver/Front Passenger Seat (Dislocated, Pinched Or Leaking Condensation Hose) (LI83.00-P-052510)
Exterior Body Panels
- Fuel Filler Door Difficult To Open (VERSION 4)
- Identification Of Noise Complaints Of The Vehicle Body-In-White (LI60.00-P-075851)
- Fuel Filler Flap Does Not Open Or Opens Slowly On Plug-In Hybrid Gasoline Vehicle (LI88.60-P-073470)
- Water Entry In Rear Area Of Vehicle (LI64.20-P-069988)
- Vehicle Cannot Be Refueled (LI47.10-P-061579)
Exterior Lights
- Malfunctions Of Various Control Units And/Or On-Board Power Supply Problems Caused By Water In The Control Unit Tray Under The Driver/Front Passenger Seat (Dislocated, Pinched Or Leaking Condensation Hose) (LI83.00-P-052510)
Frames, Subframes & Crossmembers
- Noise From Area Of Roof Frame, C-Pillar When Driving On Rough Terrain (LI65.20-P-076327)
- Plug-In Hybrid Fuel Filler Flap Will Not Open (LI88.60-P-067847)
Front Suspension
- "Active Curve System Malfunction" In Instrument Cluster (LI32.34-P-058736)
- Rumbling Noises From The Area Of The Front Axle. (LI32.22-P-058735)
- Fault Message "AIRMATIC" Or "Active Curve System" In Instrument Cluster (LI32.34-P-056198)
Fuel System
- Vehicle Cannot Be Refueled (LI47.10-P-061579)
Fuses & Circuit Breakers
- Wiring Damage On More Than 10 Wires (LI54.18-P-072022)
Gauges & Instrument Panels
- Message In Driver Display: "Active Brake Assist Function Restricted" U111B87, U11A600, U0416FE, U151AFE, U151687, U145CFA (LI54.71-P-077857)
- "SOS Nonfunctional" Message In The Instrument Cluster Display. DTC B129C00 Stored In Control Unit HERMES (LI82.95-P-074844)
- Message "MERCEDES Me Connect Services Limited. See Owner's Manual" In Instrument Cluster MULTIFUNCTION Display (LI54.30-P-066410)
- Broken Sliding Sunroof Operating Switch In The Overhead Control Panel (LI82.20-P-066141)
- Service: Service Display Implausible (LI00.20-P-066887)
- Message "SOS - Service Not Activated" In Instrument Cluster (LI82.85-P-065949)
- Instrument Cluster: Hold Indicator Continues To Be Lit For A Few Seconds Although The Vehicle Is Moving (LI54.30-P-066154)
- Resetting The Trip Computer Has No Effect On The Indicated Electrical Range (LI54.50-P-063731)
Headlights
- Headlamp Leak Test (VERSION 1)
- Malfunctions Of Various Control Units And/Or On-Board Power Supply Problems Caused By Water In The Control Unit Tray Under The Driver/Front Passenger Seat (Dislocated, Pinched Or Leaking Condensation Hose) (LI83.00-P-052510)
HVAC Control Systems
- Odor Like Crayon Or Vinegar Entering The Passenger Compartment Through The Ventilation System (LI00.00-P-066047)
- Noises From Seat Climate Control/Seat Ventilation (LI91.30-P-068713)
- Odor Like Crayon Or Vinegar Entering The Passenger Compartment Through The Ventilation System (USA) (LI00.00-P-066036)
- HVAC Refrigerant Lines Leaking (LI83.30-P-066030)
Infotainment
- B129C00 - Instrument Cluster Warning: SOS Inoperative (LI82.85-P-076800)
- MBUX Multimedia System (A26/17) - SIRIUSXM "My Favorites" Category Lost After Bus Sleep (LI82.60-P-075292)
- MBUX NTG7 Without Code 365 Navigation - Radio Station Logos No Longer Displayed After Software Update (LI82.85-P-076200)
- MERCEDES Me Connect Services Cannot Be Activated Due To APN Network Configuration (LI82.85-P-074413)
- COMAND/MBUX USB Map Update: Aborts, Does Not Load To Head Unit (LI82.85-P-071933)
- COMAND Download Manager (DLM): Download Aborted, Does Not Load To Selected USB Drive (LI82.85-P-071912)
- Cracks Appear On Touchpad Surface With No Sign Of External Force (LI54.21-P-068464)
- NTG 5*1 COMAND - Scrolling Stations From The Steering Wheel Controls Does Not Function Intermittently (LI82.85-P-066013)
- MBRACE System Software Update (LI82.95-P-070522)
- Audio 20: Apple CARPLAY Displays Pixelated Image (LI82.85-P-069318)
- Message "A Data Plan For Internet Services From MERCEDES Me Portal Is Needed To Use This Service" In The Head Unit (LI82.85-P-069515)
- MB App IHEART Radio Is No Longer Available After A Head Unit Update (LI82.85-P-068646)
- Info-Call/S24H-Call/MB Contact: Change Of Language Setting At Customer Request (LI82.85-P-068445)
- Audio 20: Symbols In The Status Line In The Central Display Can Overlap (LI82.85-P-068378)
- GARMIN Map Pilot: NTG5*1 - FRESHMAP Not Possible (LI82.85-P-066702)
Interior/Exterior Trim
- Noise From Area Of Roof Frame, C-Pillar When Driving On Rough Terrain (LI65.20-P-076327)
- Water Ingress At A-Pillar (LI77.00-P-063165)
- Plug-In Hybrid Fuel Filler Flap Will Not Open (LI88.60-P-067847)
- Carbon Fiber Repair (LI98.00-P-067242)
Interior/Illumination Lights
- Ambient Lighting Malfunctions Sporadically (LI82.20-P-074734)
- Touchpad: Search Lighting Does Not Dim Or Does Not Turn On (LI82.20-P-073063)
- Audio 20: Welcome Light Settings MISADJUSTED After Bus Idle (LI82.85-P-069261)
Lubrication System
- Lubricating Oil Analysis Information (LI01.00-P-068886)
- ALS Engine Oil, Diesel Fuel, And Coolant Analysis Information (LI01.00-P-077591)
- Engines M276, M278 And M176 Minor Oil Leaks Or Oil Seepage (LI01.00-P-067802)
- Engine Oil Level Above Max (LI18.40-P-066105)
Manual Steering
- Warning Message "Steering" - No Power Steering Following Engine Start (LI46.35-P-075512)
- Evaluating Play In Rack-And-Pinion Steering (LI46.20-P-071904)
- Rattling Or Humming Noise When Steering (LI46.35-P-067339)
Manual Trans
- Fault Code P089700 On 167 Chassis (LI28.00-P-075283)
Mechanical
- Engines M276, M278 And M176 Minor Oil Leaks Or Oil Seepage (LI01.00-P-067802)
- High-Frequency Whistle When Accelerating Or Recuperating (LI08.20-P-063335)
- Engine HYDROLOCK Repairs / Diagnosis (TT 02/11-B)
Mechanical - Hydraulic
- Message In Driver Display: "Active Brake Assist Function Restricted" U111B87, U11A600, U0416FE, U151AFE, U151687, U145CFA (LI54.71-P-077857)
- Squeaking Noises From Area Of Front Axle Brake (LI42.10-P-066237)
- Squeaking Noises From Area Of Front Axle Brake (LI42.10-P-066238)
- Vibration Or Noise When Braking (LI42.10-P-061801)
- Diagnosing Complaints Of Brake Pulsation (TT 06/15-O)
- Cleaning Axle Hubs When Installing Brake Discs (42.10/123A)
Procedures
- Vehicle Registration Failure In The State Of CALIFORNIA Due To Arb Adoption Of Bar-OIS Modified Software Regulations (LI07.61-P-073379)
Rear Suspension
- "Active Curve System Malfunction" In Instrument Cluster (LI32.34-P-058736)
- Fault Message "AIRMATIC" Or "Active Curve System" In Instrument Cluster (LI32.34-P-056198)
Seats
- Noises From Seat Climate Control/Seat Ventilation (LI91.30-P-068713)
- Easy Entry/Exit Feature And Automatic Seat Positioning To Size Of Driver Inoperative (LI91.10-P-073267)
- Vibration When Adjusting Seat (LI91.10-P-073256)
- BR213 - Wrinkling In Left And Right Seat Cushion Covers On Rear Bench Seat (LI91.12-P-066074)
- Splitting Of Seat Covers (LI91.10-P-063393)
Starter
- Electric Range Is Reduced After Brief Period (LI54.10-P-069831)
- Yellow Battery Symbol Fault Message In MULTIFUNCTION Display "Start Engine. See Owner's Manual" (LI54.10-P-067414)
- Malfunctions Of Various Control Units And/Or On-Board Power Supply Problems Caused By Water In The Control Unit Tray Under The Driver/Front Passenger Seat (Dislocated, Pinched Or Leaking Condensation Hose) (LI83.00-P-052510)
- Starter Battery Discharged Due To Excessively High Quiescent Current (LI82.85-P-066086)
Steering Column
- Height Adjustment Of Electric Steering Column Adjustment Jammed (LI46.15-P-063353)
- Creaking/Humming During Steering Column Adjustment (Height/Longitudinal Adjustment) (LI46.15-P-076223)
- Lane Keeping Assist: Fault Message In Instrument Cluster, Lane Keeping Assist Nonfunctional (LI46.10-P-065829)
Steering Column Switches
- Lane Keeping Assist: Fault Message In Instrument Cluster, Lane Keeping Assist Nonfunctional (LI46.10-P-065829)
Steering Control Systems
- Vehicle Starts Off On An Incline With Higher Engine Speed From Hold (LI42.47-P-068825)
Steering Gear
- Check Tie Rod Inner Joint Of Steering Gear (LI46.35-P-071462)
- Check Tie Rod Outer Joint Of Steering Gear (LI46.35-P-071461)
Sun Roof/T-Top/Convertible Top
- Water Ingress At A-Pillar (LI77.00-P-063165)
- Broken Sliding Sunroof Operating Switch In The Overhead Control Panel (LI82.20-P-066141)
Suspension Control Systems
- Message In Instrument Cluster Indicates Suspension Communication Fault (LI32.50-P-074719)
- "Active Curve System Malfunction" In Instrument Cluster (LI32.34-P-058736)
- Rumbling Noises From The Area Of The Front Axle. (LI32.22-P-058735)
- Fault Message "AIRMATIC" Or "Active Curve System" In Instrument Cluster (LI32.34-P-056198)
- Vehicle Starts Off On An Incline With Higher Engine Speed From Hold (LI42.47-P-068825)
System
- Malfunctions Of Various Control Units And/Or On-Board Power Supply Problems Caused By Water In The Control Unit Tray Under The Driver/Front Passenger Seat (Dislocated, Pinched Or Leaking Condensation Hose) (LI83.00-P-052510)
- Starter Battery Discharged Due To Excessively High Quiescent Current (LI82.85-P-066086)
- Vehicle Cannot Be Refueled (LI47.10-P-061579)
Towing
- Installing Electric Trailer Brake Controller (LI31.19-P-047216)
Towing Systems
- Installing Electric Trailer Brake Controller (LI31.19-P-047216)
Transmission Control Systems
- Transmission Control Unit Y3/8N4 (Fully Integrated Transmission Control Unit (VGS)) Not Listed In Quick Test; No Communication Possible With VGS (VERSION 2)
- Uncomfortable 3-2 And/Or 2-3 Shift On Model 166.063 With Engine 276.821 And Transmission 724.204 (LI27.60-P-069032)
- 166 With 724 And A 4-3/3-2 Harsh Downshift/Electric Motor De-Activation (LI27.00-P-068019)
Warning Systems
- Blind Spot Assist Inoperative (LI54.71-P-056477)
Wheel Hubs
- Cleaning Axle Hubs When Installing Brake Discs (42.10/123A)
Wheels & Tire System
- Various Fault Codes Present In TPM Control Unit, Vehicles With Code 475 And Code B03 (LI40.15-P-070175)
- Center Caps On The Wheels May Have Surface Damage, Corrosion, Or Fading (LI40.10-P-068659)
- Cleaning Axle Hubs When Installing Brake Discs (42.10/123A)
Wiper/Washer Systems
- Complaints About Noises Or Poor Windshield Wiper Wiping Performance (LI82.30-P-059239)