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MERCEDES-BENZ S-CLASS (1991–2024): Technical Data, DTC & Service Schedule
Built 1991–2024 · all production years covered on this single page
3.0L Turbo I6 • Gasoline
© Wikimedia Commons CC BY-SA
TroubleAtlas Score
An independent value score for the Mercedes-Benz S-Class (1991–2024) — reliability, safety, cost, parts, upkeep and documentation. Owing nothing to the manufacturer.
Scorecard · each voice 0–10
Reliabilityn/a
Safety & recallsn/a
Repair costn/a
Parts & repairability7.0
Maintenance & durability5.9
Documentation & supportn/a
Independent · Verified · Never for sale
Every figure on this Mercedes-Benz S-Class (1991–2024) page is aggregated and cross-checked against more than 6.6 million real workshop operations, NHTSA records and OEM technical sources — and updated continuously. No invented estimates.
The Mercedes-Benz S-Class (1991–2024) uses Mercedes-Benz 229.71 0W-20 engine oil. Its battery is group H8 (BCI), rated at 850A cold-cranking amps. It is powered by a 3.0L Turbo I6 engine. Use the sections below for verified fluids, battery, OEM tyres, the maintenance schedule, recommended parts and the most commonly reported OBD2 fault codes for this vehicle.
Common problems
Common repairs
Scheduled maintenance
Fluids & lubricants
Battery
Fault codes (OBD2)
Dashboard lights
Parts comparator
Accessories & tools
Tyres
Recalls & TSB
Complaints
Workshops nearby
COMMON PROBLEMS
Transmission fault signal (TCM)MODERATE
The transmission module detected a fault — check separate transmission codes.
Related codes: P0700
Misfire / Loss of cylinderMODERATE
Rough running, idle vibration, power loss.
Related codes: P0300
Thermostat: coolant temperature lowLOW
Thermostat stuck open — engine does not reach operating temperature.
Related codes: P0128
Battery/system voltage lowLOW
System voltage below 10V — check alternator, battery or wiring.
Related codes: P0562
P0011LOW
Check with an OBD2 scanner.
Related codes: P0011
AVERAGE INDICATIVE COSTS
Prices may vary by area and workshop.
Full service
€ 120 – € 200
Full brake service
€ 180 – € 300
Spark plug replacement
€ 80 – € 140
Electronic diagnosis
€ 40 – € 70
WORKSHOP LABOUR RATES BY COUNTRY
Average independent-workshop hourly labour rates, to estimate repair costs in your country.
🇩🇪Germany€95/h
🇪🇸Spain€55/h
🇫🇷France€75/h
🇮🇹Italy€45/h
🇬🇧UK£80/h
🇺🇸USA$120/h
Reference rate
€45/h
Source: Eurostat 2024
💧 FLUIDS & LUBRICANTS
🔧 SCHEDULED MAINTENANCE
Brake Fluid Flush And Replacement24 months
Engine Oil And Filter Change (Service A)16,000 km / 12 months
Check All Fluid Levels (Service A)16,000 km / 12 months
Inspect Brake System (Service A)16,000 km / 12 months
Tire Inflation Check And Rotate (Service A)16,000 km / 12 months
Check Cabin Air Filter, Wiper Blades (Service A)16,000 km / 12 months
Check Battery And Charging System (Service A)16,000 km / 12 months
Engine Air Filter Replacement (Service B)32,000 km / 24 months
📋 RECALLS & TSB (0)
No official recall verified for this vehicle in the NHTSA database.
COMMON OBD2 CODES TO CHECK
P0420
P0420
Powertrain
P0171
P0171
Powertrain
P0300
P0300
Powertrain
P0128
P0128
Powertrain
P0455
P0455
Powertrain
P0700
P0700
Transmission
P0442
P0442
Powertrain
P0172
P0172
Powertrain
P0401
P0401
Powertrain
All documented fault codes for this vehicle
The most documented diagnostic codes for this model, by system and severity. Tap a code for the full guide.
P0455
powertrain
LOW⏱ 0.62h avgP0442
powertrain
LOW⏱ 0.62h avgP0440
powertrain
LOW⏱ 0.78h avgP0420
powertrain
MEDIUM⏱ 1.24h avgP0300
powertrain
HIGH⏱ 1.22h avgP0172
powertrain
MEDIUM⏱ 1.13h avgP0171
powertrain
MEDIUM⏱ 0.95h avgP0730
transmission
MEDIUM⏱ 1.25h avgP0700
transmission
HIGH⏱ 1.25h avgP0401
powertrain
MEDIUM⏱ 1.25h avgP0011
powertrain
MEDIUM⏱ 5.4h avgU0100
network
HIGHP0562
electrical
MEDIUM⏱ 0.58h avgP0128
powertrain
MEDIUM⏱ 0.88h avg
DASHBOARD WARNING LIGHTS — UNIVERSAL GUIDE
53 warning lights classified by urgency. Appears on your vehicle? Check the urgency level.
Show all dashboard warning lights
🔴 IMMEDIATE STOP — pull over
Oil Pressure WarningEngine
Engine Temperature WarningCooling
Brake System WarningBrakes
Immobilizer / Key FaultSecurity
🟠 WARNING — check soon
Malfunction Indicator Light (MIL) / Check EngineEngine
Diesel Particulate Filter (DPF)Emissions
Battery / Charging SystemElectrical
Low Fuel WarningFuel
ABS WarningBrakes
Brake Pad Wear IndicatorBrakes
Electronic Parking Brake (EPB)Brakes
Power Steering WarningSteering
ESC / Stability Control FaultChassis
Tire Pressure Warning (TPMS)Chassis
Transmission Temperature WarningTransmission
Transmission / Gearbox FaultTransmission
Airbag / SRS WarningActive safety
EGR / Exhaust Gas Recirculation FaultEmissions
Catalytic Converter / Emissions FaultEmissions
AdBlue / DEF Level LowEmissions
Coolant Level LowCooling
Hybrid / EV System WarningHybrid
EV Charge System FaultHybrid
12V Battery (Hybrid/EV Auxiliary)Hybrid
Suspension Fault / Air SuspensionSuspension
CAN Bus / Network Communication FaultNetwork
Water in Fuel FilterFuel
Diesel Injector FaultFuel
Steering Angle Sensor FaultSteering
Turbo / Boost Pressure FaultEngine
Regenerative Braking Fault (Hybrid/EV)Hybrid
🟡 MONITOR
Fuel Cap / Evap SystemEmissions
4WD / AWD SystemDrivetrain
Bulb Failure WarningLighting
Headlight Range / Leveling FaultLighting
Service / Maintenance DueMaintenance
A/C System FaultHvac
Clutch Wear WarningTransmission
Cruise Control / ACC FaultADAS
🔵 INFORMATION
Engine Temperature Low (Blue)Cooling
Glow Plug / Diesel PreheatEngine
Traction Control / ESC OffChassis
Seatbelt ReminderActive safety
Rear Fog Light IndicatorLighting
Lane Departure / LDWS WarningADAS
Forward Collision Warning (FCW/AEB)ADAS
Blind Spot Monitor FaultADAS
Rear Parking Sensor / Camera FaultADAS
Windshield Washer Fluid LowMaintenance
Door Open WarningBody
Hood / Trunk Open WarningBody
Gear Shift Indicator (Manual)Transmission
Sport / Performance Mode ActiveTransmission
REPORTED COMPLAINTS & PROBLEMS (NHTSA)
757 owner complaints filed with the U.S. National Highway Traffic Safety Administration (NHTSA) for the Mercedes-Benz S-Class across model years 1991–2024. These are real, verified reports submitted by vehicle owners.
32 crash reports 25 fires 29 injuries 1 death
Complaints by model year (most reported first)
Model year 2002120
Model year 200380
Model year 200765
Model year 201551
Model year 200450
Model year 202245
Model year 201033
Model year 202133
Most reported components (all years)
Electrical System175
Suspension104
Engine71
Unknown Or Other69
Power Train65
Service Brakes44
Sample reports
Car was in for recall Dec 7,2025 to Mercedes Benz of Rockville Centre service 110 Graham Avenue Hempstead Ny they are having difficulties with the recall it is now Dec 30, 2025 still not repaired they told me it was a parts problem they… (MY 2021)
AIR BAG-DRIVERS SIDE, STEERING WHEEL. I RECENTLY BECAME AWARE OF YOUR SITE AND THOUGHT IT APPROPRIATE TO INFORM YOU OF THIS ISSUE. THE AIRBAG WARNING LIGHT CAME ON AND THE DEALER CLEARED THE FAULT CODE. THIS LASTED ONE WEEK AND THEN TH… (MY 2003)
The vehicle dropped at front axle areas on both sides. The next message stated "Vehicle to Low". Vehicle is available for inspection upon request. Could not drive regular speed limit almost got rear ended. Reproduced i am not sure, t… (MY 2014)
TL* THE CONTACT OWNS A 2010 MERCEDES-BENZ S550. THE CONTACT STATED THAT UPON REFUELING THE VEHICLE, A STRONG FUEL ODOR WAS DETECTED IN THE INTERIOR OF THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GEORGETOWN (7401 S IH-35, GEORG… (MY 2010)
Source: NHTSA complaints database (U.S. data.gov). Figures cover production years 1991–2024.
Frequently Asked Questions
What does fault code P0300 mean on the Mercedes-benz S-class?
Random/Multiple Cylinder Misfire Detected This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
What does fault code P0128 mean on the Mercedes-benz S-class?
Coolant temperature below thermostat regulating temperature — thermostat stuck open or faulty This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
What does fault code P0011 mean on the Mercedes-benz S-class?
A Camshaft Position Timing Over-Advanced or System Performance (Bank 1) This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
Are steering problems common on the Mercedes-benz S-class?
Yes — 83 of 734 real owner reports filed with NHTSA mention the steering. One owner reported: “WHILE DRIVING ON 12/10/2016, THE INSTRUMENT CLUSTER PANEL WENT VERY DARK. AT NIGHT THERE WAS NO ILLUMINATION EITHER. ALSO THE SPEEDOMETER WAS FLUCTUATING WILDLY FROM HIGH TO LOW AND BACK. I COULD O…” See the owner-reported complaints section below for more.
Are engine problems common on the Mercedes-benz S-class?
Yes — 127 of 734 real owner reports filed with NHTSA mention the engine. One owner reported: “RIGHT SIDE CATALYST BROKE APART AND FAILED. IT CAUSED THE CAR TO RUN REALLY HORRIBLE AND STALL OUT MANY TIMES. MANUFACTURER DOESN'T WANT TO BE RESPONSIBLE FOR THE REPAIR, EVEN IF THE VEHICLE ONLY HAS…” See the owner-reported complaints section below for more.
Are electrical problems common on the Mercedes-benz S-class?
Yes — 223 of 734 real owner reports filed with NHTSA mention the electrical. One owner reported: “The contact owns a 2002 Mercedes-Benz S600. The contact stated while driving 60 MPH, the active body control warning light illuminated, after which the front suspension lowered to the ground, preventi…” See the owner-reported complaints section below for more.
What is the right battery for the Mercedes-Benz S-Class (1991–2024)?
The battery specified for the Mercedes-Benz S-Class (1991–2024) is group H8 (BCI), with a cold cranking rating of 850A. See the Battery section on this page for the main cross-references between brands.
What engine oil should I use on the Mercedes-Benz S-Class (1991–2024)?
The engine oil specification for the Mercedes-Benz S-Class (1991–2024) is Mercedes-Benz 229.71 0W-20. Always use the viscosity grade approved by the manufacturer: a different oil can reduce engine protection and void the warranty. Check the change interval in the Maintenance section.
Which OBD2 fault codes are commonly documented for the Mercedes-Benz S-Class (1991–2024)?
Commonly documented OBD2 codes across many vehicles include: P0420, P0300, P0171. Find the full description, likely causes and estimated repair costs in the OBD2 Codes section on this page.
How often should the Mercedes-Benz S-Class (1991–2024) be serviced?
Routine maintenance for the Mercedes-Benz S-Class (1991–2024) typically includes an oil change every 6,000–9,000 miles (10,000–15,000 km), an air filter every 12,000–18,000 miles (20,000–30,000 km) and a brake inspection every 12,000 miles (20,000 km). Check the full plan with specific intervals in the Scheduled Maintenance section on this page.
Bookmark this page to consult it at the workshop or when buying parts. TroubleAtlas updates its technical data continuously — check back for new information on the Mercedes-Benz S-Class (1991–2024).