Nissan Qashqai J10 1.5 dCi 106bhp — 1.5 dCi Connecting Rod Bearing Failure
The Renault-sourced K9K 1.5 dCi engine is infamous for spinning its bottom-end connecting rod bearings, especially if oil change intervals are pushed too far.
Severity
CriticalDIY Difficulty
Hard
Est. Cost
£300–£1500
OBD Codes
None
Wheel Bearing
Typical layout and location for the Wheel Bearing assembly.
Symptoms
- Heavy, rhythmic knocking noise from bottom of engine
- Noise increases with RPM
- Low oil pressure warning light
- If ignored, conrod punches a hole through engine block
Root Cause
The bearing shells wear prematurely due to a combination of material choice and oil degradation. Extended 18,000-mile service intervals caused oil to thin out and lose protection.
How To Fix
- If knocking is heard, STOP driving immediately
- PREVENTATIVE: Drop oil sump and replace big-end bearing shells every 70,000 miles (£250-350)
- If bearings have spun: Engine requires full rebuild or replacement
- Change oil every 9,000 miles maximum to prevent this
Estimated Repair Costs
| Repair Option | Est. Cost (GBP) |
|---|---|
| DIY (parts only) | £120–£600 |
| Independent Garage | £300–£1500 |
| Main Dealership | £480–£2400 |
Other Faults on This Variant
Timing Chain Failure (K9K Engine)
SevereThe Renault/Nissan K9K 1.5 dCi engine in the Qashqai J10 is known for timing chain wear. Unlike a timing belt, there is no scheduled replacement — but chains stretch and tensioners fail.
DPF Blockage and Sensor Failure
ModerateDPF issues on the J10 Qashqai are common because many are used as school-run and short-trip vehicles — exactly the wrong driving profile for a diesel with a DPF.
Steering Column Clicking / Rack Failure
ModerateA clicking or clunking noise when turning the steering wheel at low speeds is extremely common. It usually stems from the steering column universal joint or the rack itself.
Disclaimer: Repair cost estimates are indicative and based on community data. Always get a quote from a qualified mechanic before proceeding with any repair.