2012 Mercedes Benz Cls550 Problems & Reliability

Reliability 5 minute read

When it comes to luxury vehicles, the 2012 Mercedes-Benz CLS550 often stands out as a symbol of elegance and performance. With its sleek design and powerful V8 engine, this model has captured the attention of car enthusiasts and luxury seekers alike. However, like any vehicle, the CLS550 is not without its quirks and challenges. For those considering purchasing this model or current owners looking to understand their car better, it's essential to delve into the common problems and reliability issues associated with the 2012 CLS550.

In this blog post, we'll explore some of the most frequently reported issues with the 2012 Mercedes-Benz CLS550, from engine performance hiccups to electronic system glitches. We'll also discuss the overall reliability of this model, drawing on owner experiences and expert reviews to provide a comprehensive overview. Whether you're a potential buyer weighing your options or a current owner seeking solutions, understanding these aspects can help you make informed decisions and ensure your CLS550 remains a joy to drive.

Suspension & Steering

Reported problems

  • leaks from rear air springs

Analysis

The 2012 Mercedes Benz CLS550 has had some issues with leaks from the rear air springs, which can be a bit of a headache for owners. This problem can lead to a less comfortable ride and potentially costly repairs if not addressed promptly. While the car offers a luxurious driving experience, these air spring leaks are something to keep an eye on for maintaining overall reliability.

Parts assessed: Struts, shocks, control arms, sway bars, ball joints, tie rods, wheel bearings, power steering pump, power steering fluid leaks, electronic power steering (EPS), steering rack and pinion, steering linkage, alignment issues, torsion bars, springs, air suspension (if applicable).

Systems with no reports

14 systems have no reported problems
Body Components

No major Body Components problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Windows, power locks, manual locks, doors, trunk, tailgate, mirrors, power and manual seat controls, seat belts, sunroof, convertible top, glass defects.

Brake System

No major Brake System problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Brake pads, brake rotors, brake calipers, anti-lock braking system (ABS), brake lines, brake master cylinder, brake booster, parking brake, brake sensors, regenerative braking system (if applicable).

Heating & Cooling

No major Heating & Cooling problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Air conditioning compressor, AC condenser, AC evaporator, heater core, blower motor, automatic climate control system, refrigerant leaks, HVAC electrical components, temperature sensors, ventilation system.

Drivetrain

No major Drivetrain problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: CV joints, driveshaft, axles, differential, limited-slip differential (if applicable), traction control system, electronic stability control (ESC), four-wheel-drive (4WD) components, all-wheel-drive (AWD) components, transfer case, driveline vibration.

Interior Electronics

No major Interior Electronics problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Infotainment system, GPS navigation, Bluetooth connectivity, touchscreen display, phone pairing, backup camera, rear entertainment system, head-up display, instrument cluster, digital gauges.

Cooling System

No major Cooling System problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Radiator, radiator hoses, cooling fan, water pump, thermostat, antifreeze leaks, engine coolant reservoir, overheating prevention system, intercooler (if applicable).

Ignition & Wiring

No major Ignition & Wiring problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Alternator, battery, ignition switch, ignition coil, spark plugs, ignition wires, engine control module (ECM), electronic ignition system, auto stop/start function, battery cables, engine wiring harness, fuse box, relays, starter motor.

Engine Repairs

No major Engine Repairs problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Engine rebuilds, cylinder head, head gasket, timing chain, timing belt, camshaft, crankshaft, connecting rods, turbocharger or supercharger (if applicable), valve train, piston rings, oil control system, engine knocking, engine misfires.

Exhaust System

No major Exhaust System problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Muffler, catalytic converter, exhaust manifold, heat shields, exhaust pipes, oxygen (O₂) sensors, resonator, exhaust leaks, emissions control system.

Fuel & Emissions

No major Fuel & Emissions problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Fuel pump, fuel injectors, fuel rail, fuel pressure regulator, throttle body, fuel gauge sensor, evaporative emissions system, EGR (exhaust gas recirculation) valve, charcoal canister, fuel filter, fuel tank, vapor leaks.

Onboard & Powertrain Electronics

No major Onboard & Powertrain Control Electronics problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Cruise control, keyless entry system, push-button start, wiper motor, warning lights, power mirrors, interior lighting, exterior lighting, dashboard indicators, electronic parking brake, tire pressure monitoring system (TPMS), alarm and security system, remote engine start, heated and ventilated seats, heated steering wheel, wireless charging pad.

Strange Sounds & Leaks

No major Strange Sounds & Leaks problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Dashboard rattles, squeaks, wind noise, door seals, weather stripping, water leaks, air leaks, excessive road noise, suspension noise, drivetrain noise, exhaust rattles, engine bay noises.

Exterior Finish

No major Exterior Finish problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Paint durability, clear coat protection, rust prevention, corrosion resistance, body panel alignment, door seals, window trim, plastic trim, metal finishes, fading, cracking, peeling.

Transmission Repairs

No major Transmission Repairs problems have been reported for the 2012 Mercedes-Benz CLS550.

Parts assessed: Transmission rebuild, transmission replacement, torque converter, transmission solenoids, gear selector, gear shifting, transmission control module (TCM), transmission fluid leaks, clutch (manual transmission), automatic transmission valve body, CVT (continuously variable transmission) components, dual-clutch transmission (DCT) components.