BMW N47

An N47 can still be a usable buy, but only when timing-chain condition, oil-service intervals, emissions health, and repair history are verified before purchase.

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Strengths

Strong fuel economy
Good mid-range torque
Wide parts and specialist support

Common problems

Rear-mounted timing-chain wear and expensive access
EGR and DPF problems on short-trip cars
Turbo and crankcase-breather wear
Injector correction and glow-system faults

Pre-purchase checks

Hear the engine start completely cold and listen for metallic chain noise
Verify invoices for timing work and frequent oil changes
Scan DPF loading, EGR faults, injector corrections, and glow modules
Check for smoke, uneven idle, boost hesitation, and oil leaks

Service priorities

Use correct-spec oil at conservative intervals
Do not ignore chain noise or unexplained metallic rasp
Protect DPF health with suitable driving and prompt fault diagnosis

Common applications

Availability varies by market, year, output, and drivetrain configuration.

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