BMW X4 M40i 2019
Analysis of 5 active listings for BMW X4 M40i 2019 from mobile.bg, cars.bg and other sources. Real market prices, known engine issues and what to check before buying.
Petrol 5
📊 Market data
- Cheap listings31 800 €
- Typical price35 000 €
- Expensive listings35 900 €
- Average mileage113 720 км
⚙️ Engines — what to expect
BMW S58 3.0 twin-turbo — S58
Known issues
- Under extreme loads, crank hub can slip on the nose. (~1 500–3 000 € repair)
- Charge air cooler can seep coolant into intake, causing misfires. (~600–1 500 € repair)
- HPFP wear can cause hard starts and misfires at higher mileage. (~600–1 400 € repair)
BMW B-series petrol — B48
Known issues
- Some early units consume oil above normal. Check oil level regularly. (~100–2 000 € repair)
- Direct injection causes carbon deposits on intake valves. Walnut blasting may be needed. (~250–600 € repair)
- Coolant reservoir or thermostat housing can develop micro-cracks. (~200–600 € repair)
- HPFP can wear over time, causing rough running or hard starts. (~500–1 200 € repair)
BMW S55 3.0 twin-turbo M — S55
Known issues
- Crank hub can spin under hard use (track/launch control) — catastrophic. Aftermarket pinned hub fix available. (~500–6 000 € repair)
- Under aggressive use, rod bearings wear. Preventive replacement recommended. (~1 500–4 000 € repair)
- Plastic charge pipe can blow. Chargecooler pump can fail on hot days. (~200–800 € repair)
🚨 What to check before buying
Overall risk score: 8/10
Serious risks
- Crank hub slip (track use): Under extreme loads, crank hub can slip on the nose.
- Chargecooler leak: Charge air cooler can seep coolant into intake, causing misfires.
- High-pressure fuel pump wear: HPFP wear can cause hard starts and misfires at higher mileage.
Additional notes
- BMW S58 in M3/M4 G80/G82 can suffer crank hub slip under extreme track loads. If car was tracked, inspect crank hub. OEM crank hub retaining bolt can loosen. Budget €1,500-3,000 if crank hub needs pinning.
- BMW N20 timing chain stretches after 80k km. Rattle on cold start is the first sign. If ignored, chain can jump timing causing engine damage. Replace chain preventively. Cost €1,000-2,500.
🔥 Current market offers
5 cheapest active listings for BMW X4 M40i 2019. Click "Analyze" for a full report with market valuation, risk analysis and photo analysis.
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