Mercedes-Benz · Wagon · 2000–2007
Mercedes-Benz C-Klasse W203 T-Modell
Weaknesses, engine ratings and buying advice
★★★★★
2.0 / 5.0 · Based on 8 engine variants Most Fun Engine
163–354 PS
3.2L V6 Benzin
V6 Culture in the Compact
Fun to Drive! Problem Engine
190–265 PS
3.0L V6 Diesel Diesel
7 weaknesses
Stay Away!Engine Overview
The Mercedes-Benz C-Klasse W203 T-Modell is available with 13 engine variants — from 95 to 354 hp.
C 200 CDI Engine Change
2000 2004
Be Careful 6 weaknesses
2000 2004
Be Careful 6 weaknesses
2004 2007
Be Careful 6 weaknesses
2004 2007
Be Careful 6 weaknesses
C 220 CDI Engine Change
2000 2004
Be Careful 6 weaknesses
2000 2004
Be Careful 6 weaknesses
2004 2007
Be Careful 6 weaknesses
2004 2007
Be Careful 6 weaknesses
C 270 CDI Engine Change
2000 2004
Stay Away! 6 weaknesses
2000 2004
Stay Away! 6 weaknesses
C 320 CDI
2005 2007
Stay Away! 7 weaknesses
C 180 Engine Change
2000 2002
Be Careful 6 weaknesses
2000 2002
Be Careful 6 weaknesses
C 180 Kompressor
2002 2007
Stay Away! 6 weaknesses
C 200 Kompressor
2000 2007
Stay Away! 6 weaknesses
C 230
2005 2007
Stay Away! 6 weaknesses
C 230 Kompressor
2002 2007
Stay Away! 6 weaknesses
C 240 Engine Change
2000 2005
Be Careful 7 weaknesses
2000 2005
Be Careful 7 weaknesses
C 280
2005 2007
Stay Away! 6 weaknesses
C 320
2000 2005
Be Careful 7 weaknesses
C 350
2005 2007
Stay Away! 6 weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Rear subframe rusted through Rear subframe rusts from the inside out. Critical weak point as spring mounts can break away. Pre-facelift models up to 2004 particularly affected. Symptoms: MOT failure, visible rust in the rear axle area, changed rear handling from 150,000 km | High | |
| Body Rust on Wheel Arches and Door Edges W203 up to the facelift of March 2004 particularly rust-prone: wheel arches, sills, door lower edges and tailgate. Rear subframe can rust through on older examples. Symptoms: Blistering on wheel arches and door lower edges, rust under trim strips, corrosion on tailgate and window frames from 120,000 km | High | |
| Rust on wheel arches and door lower edges Rust starts on the rear wheel arches, followed by sills, door lower edges and tailgate. Unsealed flanges encourage corrosion. Symptoms: Rust bubbles on wheel arches, brown discolouration on door lower edges, rust under sill trim from 130,000 km | High |
Frequently Asked Questions
What problems and weaknesses does the Mercedes-Benz C-Klasse W203 T-Modell have? +
The Mercedes-Benz C-Klasse W203 as T-Modell has 57 known weaknesses, 7 vehicle-related.
Which engine is recommended? +
Be Careful: M111 (2.0-2.3L), M112 (3.2L V6), OM611 (2.2L CDI), OM646 (2.1L CDI). No engine is rated 'Good Choice'.
Is the Mercedes-Benz C-Klasse W203 T-Modell worth buying used? +
Caution is advised with the Mercedes-Benz C-Klasse W203 T-Modell — 4 of 8 engine variants are rated 'Stay Away!'.
Last updated: February 2026 · All information without guarantee