Mercedes-Benz Sl 320 1997
Analysis of 8 active listings for Mercedes-Benz Sl 320 1997 from mobile.bg, cars.bg and other sources. Real market prices, known engine issues and what to check before buying.
Petrol 7
📊 Market data
- Cheap listings14 200 €
- Typical price22 000 €
- Expensive listings33 660 €
- Average mileage130 692 км
⚙️ Engines — what to expect
Mercedes M272 V6 (2.5/3.0/3.5) — M272
Known issues
- Pre-2008 engines have a defective idler gear on the balance shaft. The rivet-bonded sprocket fails, causing timing chain skip and engine destruction. Mercedes issued a TSB but no recall. Check engine production date. (~2 000–5 000 € repair)
- Intake manifold tumble flap actuator fails — check engine light, rough idle. (~200–600 € repair)
- Cam adjuster magnets can fail — engine runs rough, rattles on startup. (~200–500 € repair)
- Oil leaks from valve cover gaskets and cam plugs are common with age. (~200–600 € repair)
Mercedes M276 3.0/3.5 V6 biturbo (DI) — M276
Known issues
- Direct injection causes carbon deposits on intake valves — walnut blasting needed. (~300–700 € repair)
- PCV oil separator can fail, causing oil leaks and idle issues. (~200–600 € repair)
- Occasional chain tensioner noise on cold start at higher mileage. (~400–1 200 € repair)
Mercedes M113 V8 (4.3/5.0) — M113
Known issues
- Same swirl flap linkage issue as M112. (~200–600 € repair)
- Engine wiring harness insulation becomes brittle with heat — intermittent misfires, sensor issues. (~400–1 200 € repair)
🚨 What to check before buying
Overall risk score: 10/10
Serious risks
- Balance shaft sprocket failure (CRITICAL): Pre-2008 engines have a defective idler gear on the balance shaft. The rivet-bonded sprocket fails, causing timing chain skip and engine destruction. Mercedes issued a TSB but no recall. Check engine production date.
- Intake manifold swirl actuator: Intake manifold tumble flap actuator fails — check engine light, rough idle.
- Camshaft adjuster solenoid: Cam adjuster magnets can fail — engine runs rough, rattles on startup.
- Valve cover/cam plug leaks: Oil leaks from valve cover gaskets and cam plugs are common with age.
- Car is 29 years old — expect age-related wear: rubber seals, bushings, water pump, AC compressor
Additional notes
- Vehicle is 15+ years old. Age-related issues: rubber seals/hoses degrade, electrical connectors corrode, suspension bushings wear. Not specific to any engine, but expect €500-1,500/year in age-related maintenance beyond normal service items.
- Vehicle is 15+ years old. Age-related issues: rubber seals/hoses degrade, electrical connectors corrode, suspension bushings wear. Not specific to any engine, but expect €500-1,500/year in age-related maintenance beyond normal service items.
- Vehicle is 15+ years old. Age-related issues: rubber seals/hoses degrade, electrical connectors corrode, suspension bushings wear. Not specific to any engine, but expect €500-1,500/year in age-related maintenance beyond normal service items.
🔥 Current market offers
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