Mercedes CLS C219 (2004–2010) (2004 – 2010)

Reliability score : 7.4/10

The Mercedes-Benz CLS (C219 generation) is a historic model that inaugurated the '4-door coupé' segment. Based on the E-Class (W211) platform, it adopts its underpinnings, engines, and technologies, while offering a sculptural and timeless design. Positioning: A luxurious niche vehicle, prioritizing style and comfort at the expense of rear passenger space (limited headroom and strict 4-seat configuration). Major evolutions: - Mid-2006: Abandonment of the problematic SBC (Sensotronic Brake Control) braking system in favor of a conventional system, and introduction of new engines (M273, updated OM642). - 2008 (Facelift): Mirrors with arrow-shaped turn signals, two-slat grille, LED taillights, new NTG 2.5 infotainment system, and renaming of certain versions (the 320 CDI became 350 CDI withou

✅ Strengths

Timeless exterior design, a true automotive classic
Imperial ride comfort (especially with Airmatic suspension)
Very high level of sound insulation
Enjoyment and fuel efficiency of the OM642 diesel V6 on long journeys
Quality of interior materials and finish (wood trim, leather)

⚠️ Weaknesses

Poor rear passenger space (limited headroom and difficult access)
Very high maintenance and repair costs (premium Mercedes parts)
Disastrous reliability of the SBC braking system (2004-2006)
7G-Tronic gearbox sometimes slow and prone to jerks (electronic plate)
Very limited peripheral visibility (reduced glass areas)

🎯 Verdict

The Mercedes CLS C219 is a future collector car whose design has not aged a bit. Regarding the diesel engine (320/350 CDI - OM642), it is an excellent choice for high-mileage drivers, offering generous torque and reasonable fuel consumption. However, this engine requires meticulous maintenance: the slightest negligence on the turbo seal or oil changes will come at a high cost (M55 motor, oil cooler, manifolds). Buying advice: Absolutely avoid models from 2004 to mid-2006 due to the SBC braking system, unless the pump has been recently replaced with an invoice. Opt for a facelifted model (post-2008) in 320/350 CDI with a clear service history, or turn to the 5.0L V8 (CLS 500 M113) for absolute mechanical reliability in gasoline.

Common issues

Fuite du refroidisseur d'huile moteur (OM642) High

🔧 100 000 – 180 000 km

💶 800 – 1 500 €

Vérifier régulièrement le 'V' du moteur pour des traces d'huile. Réparer rapidement pour éviter d'autres dommages.

Défaillance du moteur de volets d'admission (swirl flaps) (OM642) Medium

🔧 120 000 – 200 000 km

💶 600 – 1 200 €

Peut entraîner une perte de puissance et un voyant moteur. Une réparation préventive est conseillée.

Problèmes de suspension pneumatique Airmatic (fuites, compresseur) High

🔧 100 000 – 160 000 km

💶 800 – 2 500 € par essieu/composant

Vérifier l'assiette du véhicule à l'arrêt. Les fuites sont courantes, le compresseur peut lâcher.

Défaillance de la platine électronique de boîte de vitesses 7G-Tronic High

🔧 150 000 – 220 000 km

💶 1 200 – 2 000 €

Peut causer des changements de vitesse erratiques ou l'impossibilité de passer les rapports. Entretien régulier de la BVA crucial.

Fuites ou défaillance des injecteurs de carburant (OM642) Medium

🔧 140 000 – 200 000 km

💶 300 – 700 € par injecteur (hors 'black death')

Surveiller les odeurs de carburant ou le 'black death' (dépôts de carbone). Réparer rapidement pour éviter des coûts plus élevés.

Estimated maintenance costs

Oil change	£90 – 160
Timing chain	£1 400 – 2 800 (si nécessaire, rare)
Complete brakes	£280 – 580
Estimated annual budget	£650 – 1 300

Indicative estimates (independent garage, UK market). Prices vary by region and year.