Mercedes-Benz C 200: Common Problems & Reliability Guide
Also covers: C 250, CLA, GLC
Real, sourced data · last reviewed 2026-07-24
Camshaft Reluctor (Tone) Ring Slip
Engine · severity: Moderate - degrades drivability progressively rather than risking sudden mechanical damage · confidence: 84/100 · 3 cited sources
What to check before you buy
- Ask whether the car has developed a noticeably longer crank time before starting, and any hesitation/lack of power under acceleration
- Scan for P001177 / P001685
- If present, treat as a camshaft assembly (reluctor ring) fault, not a chain/tensioner fault
- Follow manufacturer procedure to confirm reluctor ring position on the camshaft assembly
Full repair-cost estimate, TSB/recall reference and the specific buyer negotiation tip for this issue are included in the R99 vehicle report.
This guide summarises documented, sourced findings for the Mercedes-Benz C 200 generally. It is not an assessment of any specific vehicle - mileage, service history and condition vary by example. A full AutoLytiQs report checks a specific listing against this data plus a live South African market valuation.