Coverage

Mercedes-Benz chassis coverage

Eurofault covers 43 Mercedes-Benz chassis with guided electronic repair procedures today. Below is every chassis code, its model line and years, and the electronic fault it is best known for. Chassis marked "In research" are being written now.

C-Class

W202 C-Class (1993–2000)

EZS/EIS ignition-switch no-start; instrument-cluster LCD pixel loss

W203 C-Class (2000–2007)

Front & rear SAM failure from cowl/A-pillar water intrusion

W204 C-Class (2007–2014)

ESL/ELV electronic-steering-lock "silent brick" no-crank

W205 C-Class (2014–2021)

COMAND head-unit freeze/reboot/black-screen; SAM continues

W206 C-Class (2021–present)

Pre-fuse-box bolt under-torqued; rear-SAM trunk water intrusion

C204 C-Class (2011–2015)

C-Class coupe — shares W204 platform and electronics; coupe-specific fault research not yet written

C205 C-Class (2015–2023)

C-Class coupe — shares W205 platform and electronics; coupe-specific fault research not yet written

A205 C-Class (2016–2023)

C-Class cabriolet — shares W205 platform and electronics; cabriolet-specific fault research not yet written

E-Class

W124 E-Class (1984–1997)

OVP relay & EZL ignition-timing module heat failure; biodegradable wiring

W210 E-Class (1995–2002)

Instrument-cluster LCD pixel failure; EIS/EZS ignition faults

W211 E-Class (2002–2009)

Sensotronic Brake Control (SBC) failure — brake-by-wire system MB later abandoned

W212 E-Class (2009–2016)

SAM water intrusion — "the #1 problem" on this chassis

W213 E-Class (2016–2024)

Door wiring-harness fatigue cracking; AMG E53 transmission-harness water intrusion

C207 E-Class (2009–2017)

E-Class coupe — shares W212 platform and electronics; coupe-specific fault research not yet written

A207 E-Class (2010–2017)

E-Class cabriolet — shares W212 platform and electronics; cabriolet-specific fault research not yet written

S-Class

W140 S-Class (1991–1998)

EIS/EZS ignition electronics; brittle "biodegradable" wiring insulation

W220 S-Class (1998–2005)

SAM, Airmatic (N51) and ABC all documented — MB's most troublesome S-Class

W221 S-Class (2005–2013)

Airmatic valve-block solenoid failure; COMAND NTG3/3.5 boot-loop

W222 S-Class (2013–2020)

Combination-switch (steering-column stalk) electronics failure

W223 S-Class (2020–present)

MBUX/12V voltage-converter and Camtronic ECU software faults

C217 S-Class (2014–2020)

S-Class coupe — shares W222 platform and electronics; coupe-specific fault research not yet written

Maybach S-Class

Z223 Maybach S-Class (2021–present)

E-Active Body Control degradation and rear-seat entertainment freezes

CLS

C219 CLS (2004–2010)

Rear SAM water intrusion via trunk seal; shares W211 SBC architecture

C218 CLS (2011–2017)

COMAND/console-controller failure; shares W212 ESL/ELV failure

C257 CLS (2018–2023)

AMG CLS 53 transmission wiring-harness water intrusion

CLA

C117 CLA (2013–2019)

Front SAM water intrusion (U0141); Occupant Classification System miscalibration

C118 CLA (2019–present)

MBUX black-screen/reboot fault; headlight control module (LCM) failure

A-Class (sedan)

W177 A-Class (sedan) (2018–present)

Front SAM — A/C drain-hose root cause; eCall/HERMES software fault

190E

W201 190E (1982–1993)

EZL ignition-control-module "hot no-start"; OVP/fuel-pump relay

A-Class

W168 A-Class (1997–2004)

A-Class hatchback; fault research not yet written

W169 A-Class (2004–2012)

A-Class hatchback; fault research not yet written

W176 A-Class (2012–2018)

A-Class hatchback; fault research not yet written

B-Class

W245 B-Class (2005–2011)

B-Class compact MPV; fault research not yet written

W246 B-Class (2011–2018)

B-Class compact MPV; fault research not yet written

W247 B-Class (2019–present)

B-Class compact MPV — shares W177 platform and electronics; fault research not yet written

CLK

C208 CLK (1997–2002)

CLK coupe/cabriolet — shares W202 platform and electronics; fault research not yet written

C209 CLK (2002–2009)

CLK coupe/cabriolet — shares W203 platform and electronics; fault research not yet written

CL

C215 CL (1999–2006)

CL coupe — shares W220 platform and electronics; fault research not yet written

C216 CL (2006–2014)

CL coupe — shares W221 platform and electronics; fault research not yet written

SLK / SLC

R170 SLK / SLC (1996–2004)

SLK roadster with folding hardtop; fault research not yet written

R171 SLK / SLC (2004–2011)

SLK roadster with folding hardtop; fault research not yet written

R172 SLK / SLC (2011–2020)

SLK, renamed SLC from 2016; roadster with folding hardtop; fault research not yet written

SL

R129 SL (1989–2001)

SL roadster; fault research not yet written

R230 SL (2001–2011)

SL roadster with folding hardtop; fault research not yet written

R231 SL (2012–2020)

SL roadster with folding hardtop; fault research not yet written

R-Class

W251 R-Class (2005–2017)

R-Class crossover; fault research not yet written

AMG GT

C190 AMG GT (2014–present)

AMG GT coupe and roadster; fault research not yet written

X290 AMG GT (2018–present)

AMG GT 4-door coupe; fault research not yet written

SLS AMG

C197 SLS AMG (2011–2015)

SLS AMG gullwing coupe and roadster (M159 V8, 7-speed AMG SPEEDSHIFT DCT transaxle); fault research not yet written

ML / GLE

W163 ML / GLE (1998–2005)

722.6 transmission 13-pin connector wicks ATF into the harness — false limp-mode; crankshaft-position-sensor hot no-start

W164 ML / GLE (2006–2011)

Camshaft/cam-sensor oil wicking into the wiring harness; OM642 diesel intake swirl-flap failure; rear brake-line corrosion (salt-belt cars)

W166 ML / GLE (2012–2019)

Badged ML through MY2015, GLE from MY2016. 4MATIC transfer-case chain/bearing wear; M276 camshaft-adjuster cold-start rattle; rear SAM water intrusion

C292 ML / GLE (2016–2019)

GLE Coupe. Shares W166 electronics/mechanicals — 4MATIC transfer-case wear, camshaft-adjuster rattle, rear SAM water intrusion

W167 ML / GLE (2020–present)

M264 cylinder-head valve-seat leakage (TSB); 48V ISG/battery faults; A/C evaporator leak (TSB); hidden coolant loss via washer-reservoir heat exchanger

C167 ML / GLE (2020–present)

GLE Coupe. Shares W167 faults — M264 valve-seat leakage, 48V system faults, A/C evaporator leak, washer-reservoir coolant loss

GLA

X156 GLA (2015–2020)

4MATIC rear-differential noise from a stripped fill plug (GLA45); 7G-DCT auxiliary oil-pump failure; SAM "additional battery" ECO start/stop fault

H247 GLA (2021–present)

4MATIC rear-differential clutch wear ("4MATIC inoperative"); 8G-DCT limp-mode/Neutral faults; A/C high-side cutout in extreme heat

GLB

X247 GLB (2020–present)

Shares H247 GLA platform faults — 4MATIC rear-differential clutch wear, 8G-DCT limp mode, A/C high-side cutout; front-end creak at low-speed steering

GLK

X204 GLK (2010–2015)

Rear subframe rust-through (rear-end shift/wander); 722.9 conductor-plate limp mode; M276 cold-start rattle; ESL/ELV no-crank

GLC

X253 GLC (2016–2022)

M274 PCV/oil-separator CEL; AIRMATIC front-strut leak; EASY-PACK power-liftgate weak gas struts; 9G-TRONIC EHS limp mode

X254 GLC (2023–present)

48V mild-hybrid "Service Required"/no-start triage; M254 camshaft-adjuster central-valve filter failure; front-suspension clatter (spring shim/strut mount)

GLC Coupe

C253 GLC Coupe (2017–2022)

GLC Coupe — shares X253 SUV platform and electronics; SUV-specific fault research not yet written

C254 GLC Coupe (2024–present)

GLC Coupe — shares X254 SUV platform and electronics; SUV-specific fault research not yet written

GL / GLS

X164 GL / GLS (2007–2012)

Front AIRMATIC strut leak; OM642 diesel oil-cooler seal leak at the bellhousing; 4MATIC transfer-case chain/bearing wear; 722.9 conductor-plate limp mode

X166 GL / GLS (2013–2019)

Front AIRMATIC strut/compressor failure; OM642 diesel oil-cooler seal leak; BlueTEC NOx-sensor codes; camshaft-adjuster oil wicking into the harness

X167 GL / GLS (2020–present)

48V battery/DC-DC "Malfunction" no-start (EQ Boost); front/rear AIRMATIC leaks; coolant loss into the washer reservoir; 9G-TRONIC harsh-shift/limp-home

G-Class

W463 G-Class (2002–2018)

Locking-differential vacuum/hydraulic actuator faults; steering shimmy ("death wobble"); M113 crank-position-sensor no-start; drivetrain vibration from neglected transfer-case/diff fluid

W463A G-Class (2019–present)

Differential-lock-system (DLM) malfunction warning; brake-light-switch-related intermittent ABS/ESP fault; exhaust-flap codes/power reduction above 4,000 rpm

W464 G-Class (2025–present)

In research

Electric G-Class (G580 with EQ Technology) — quad-motor AWD, high-voltage battery pack; fault research not yet written, and any future procedures need HV safety warnings

EQB

X243 EQB (2022–present)

DC/DC converter (N83/1) HV/12V warning; "Reduced Drive Power" false alarm (hood/Valet/Beginner mode); EPS ball-screw (KGT) steering-gear water/impact damage

EQE SUV

X294 EQE SUV (2023–present)

In research

Flush door-handle jam/Keyless-Go fault; "Reduced Drive Power" false alarm; EPS ball-screw (KGT) steering-gear damage; Mercedes me connect / RAMSES telematics faults

EQS SUV

X296 EQS SUV (2023–present)

In research

Flush door-handle jam/Keyless-Go fault; 12V battery warning from a DC/DC-converter HV voltage-divider fault; EPS ball-screw (KGT) steering-gear damage

V-Class / Vito

W447 V-Class / Vito (2014–present)

V-Class and Vito van; fault research not yet written

Sprinter

W906 Sprinter (2006–2018)

Sprinter van; fault research not yet written

W907 Sprinter (2018–present)

Sprinter van; fault research not yet written

EQC

N293 EQC (2019–present)

EQC electric SUV — high-voltage battery pack; fault research not yet written, and any future procedures need HV safety warnings

EQE

V295 EQE (2022–present)

EQE electric sedan — high-voltage battery pack; fault research not yet written, and any future procedures need HV safety warnings

EQS

V297 EQS (2021–present)

EQS electric sedan — high-voltage battery pack; fault research not yet written, and any future procedures need HV safety warnings

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