Is the 2005 Mercedes-Benz Sl-Class reliable?

The 2005 Mercedes-Benz Sl-Class scores 65/100 (C) on OwnerKeep's reliability index, which places it in the high risk category. See the full report for the specific strengths and failure points.

What are the common problems with the 2005 Mercedes-Benz Sl-Class?

See the Common Issues section above for the top failure areas reported by real owners, with typical mileage ranges where problems start showing up.

How much does it cost to maintain a 2005 Mercedes-Benz Sl-Class?

Expected maintenance costs depend heavily on age, mileage and how well the vehicle was kept up. Run the full report for a year-by-year cost outlook.

What should I check before buying a 2005 Mercedes-Benz Sl-Class?

Focus on the top risk areas flagged in this report, review service history, and verify the vehicle is not inside one of the mileage danger zones listed above.

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Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2005 Mercedes-Benz Sl-Class Reliability ReportCommon Problems, Repair Costs & Expert Verdict

65/ 100

KeepScore

HIGH RISK

Grade: C

A luxurious power cruiser that promises thrills but delivers costly headaches if not meticulously maintained.

Full system breakdown + what I would do

Quick Facts · 2005 Mercedes-Benz Sl-Class

No active NHTSA safety recalls on record — a clean recall slate for the 2005 model year.
Outscores the 2003 Mercedes-Benz Sl-Class by 20 points — one of the stronger nearby years to consider.
The system most likely to surface first: active body control (abc) suspension (critical severity).

Should You Buy the 2005 Mercedes-Benz Sl-Class?

Owning a 2005 Mercedes-Benz SL-Class is an emotional decision, offering undeniable luxury and performance, but it demands a robust budget for its complex systems. This isn't a car for the faint of wallet; prepare for significant upkeep, particularly concerning its hydraulic ABC suspension and intricate electronics, which can lead to substantial repair bills.

Biggest Strengths

Robust core engine design (M113 V8, M275 V12) if maintained
Excellent build quality for chassis and interior materials
Timeless styling and powerful road presence

Top Risk Areas

The systems that break first on the 2005 Mercedes-Benz Sl-Class. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

Active Body Control (ABC) Suspensioncritical

Electrical System & Modulesmajor

Retractable Hardtop (Vario Roof)major

Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

NHTSA Recalls

No active NHTSA safety recalls on file for the 2005 Mercedes-Benz Sl-Class. Always verify with your VIN atnhtsa.gov.

What breaks on the 2005 Mercedes-Benz Sl-Class?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Mercedes-Benz Sl-Class by Year

Compare KeepScores across nearby years of the Mercedes-Benz Sl-Class. Click any year for its full report.

All Mercedes-Benz Sl-Class years ranked →Mercedes-Benz Sl-Class years to avoid →Mercedes-Benz Sl-Class common problems →

If You're Considering This, Also Look At

Similar class, similar year range — ranked by KeepScore.

2003 ToyotaLand Cruiser

90/100

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Frequently Asked Questions

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