2015 NISSAN Sentra MR20DE/HR16DE (B17)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• CVT transmission wear in high-mileage US versions
• Timing chain noise on MR20DE engines
• Throttle body carbon buildup

First checks

• Inspect CVT fluid condition and level
• Check timing chain tension and noise
• Verify spark plug wear and gaps

Vor dem Teiletausch

• Save fault codes and freeze-frame data before clearing anything.
• Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
• Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

• Model and engine availability varies significantly by market; North America commonly received the MR20DE 2.0L engine with CVT transmission.
• Latin America and Asia markets offered smaller displacement engines (HR16DE, MR18DE) with manual or CVT automatics.
• Oil capacity includes filter change but exact quantity depends on engine and equipment, confirm during servicing.