BMW 3 Series2016

• Timing chain tensioner failures plague N20/N26 petrol engines—listen for cold-start rattle and budget €800–€1,200 if replacement needed before purchase.
• Direct-injection carbon buildup causes rough idle and hesitation; professional decarbonising (€400–€600) may be required to pass NCT or restore driveability.
• Turbocharger wastegate issues common on turbocharged variants; boost lag or failure costs €1,500–€2,500—ask seller for service history confirming no turbo work pending.
• At median price and 172k km, valuation sits fair for age and mileage; check full BMW service record and all 4 recalls completed before committing.
• Pre-purchase inspection must include cold-start listening test for chain rattle and road test for turbo lag or hesitation under acceleration.

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