BMW 730 1988
Analysis of 10 active listings for BMW 730 1988 from mobile.bg, cars.bg and other sources. Real market prices, known engine issues and what to check before buying.
Petrol 10
📊 Market data
- Cheap listings1 530 €
- Typical price9 725 €
- Expensive listings16 299 €
- Average mileage166 076 км
⚙️ Engines — what to expect
BMW M57 3.0 inline-6 diesel — M57
Known issues
- Plastic swirl flaps can break — especially M57TU2. Delete is common preventive fix. (~200–1 200 € repair)
- Copper injector sealing rings leak combustion gases — carbon buildup around injectors. Easy fix. (~100–300 € repair)
- Variable vane turbo can stick or wear — loss of boost. (~400–1 200 € repair)
- EGR cooler can crack internally, causing coolant loss and white smoke. (~400–1 000 € repair)
- Later M57 variants with DPF can clog on short trips. (~500–1 200 € repair)
BMW N57 inline-6 diesel — N57
Known issues
- Intake swirl flaps can crack and get ingested into engine — catastrophic if it happens. Delete or replace with upgraded units. (~300–5 000 € repair)
- Bi-turbo N57S/N57D30T1 models — VTG actuator on small turbo can fail. Causes limp mode. (~500–1 500 € repair)
- City driving clogs the DPF, especially on short trips. Forced regeneration or replacement may be needed. (~500–1 200 € repair)
- EGR cooler can develop internal leak. Causes coolant loss and white smoke. (~500–1 200 € repair)
- Injectors can develop leak-back at higher mileage, causing hard starts. (~600–1 500 € repair)
🚨 What to check before buying
Overall risk score: 9/10
Serious risks
- Swirl flap failure: Plastic swirl flaps can break — especially M57TU2. Delete is common preventive fix.
- Injector sealing rings: Copper injector sealing rings leak combustion gases — carbon buildup around injectors. Easy fix.
- Turbo vane wear: Variable vane turbo can stick or wear — loss of boost.
- DPF clogging (later models): Later M57 variants with DPF can clog on short trips.
- Car is 38 years old — expect age-related wear: rubber seals, bushings, water pump, AC compressor
- Higher mileage (166,076 km) — check for timing system condition, turbo health, and suspension wear
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.
- BMW 530d is extremely popular in Bulgaria (1500+ listings). N57 at 200k+ km: timing chain, swirl flaps, DPF, and EGR are all wear items. ZF 8HP gearbox needs fluid change.
🔥 Current market offers
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