2000 — 2004
6.4L I6 (OM906LA)
Diesel
Cold start and idle stability | Note: Check for erratic idle or heavy blue/white smoke which may indicate worn OM906LA fuel injectors or oil consumption issues.
Transmission gear engagement | Note: Verify smooth shifts; the Telligent gearshift system is prone to sensor failure and air solenoid faults in high-mileage units.
Chassis inspection for corrosion | Note: Examine the rear subframe and air tank mounts for rust, common in coastal NZ regions, which can lead to structural failure.
Electronic dashboard diagnostic | Note: Watch for persistent 'F' codes or transmission warning lights, which often point to expensive wiring harness degradation.
Routine inspection of air dryer cartridge and primary fuel filters to ensure fuel system integrity.
Inspect kingpins for play and verify transmission oil condition; check for coolant leaks at the water pump.
Major service including valve clearance adjustment, belt tensioner replacement, and comprehensive inspection of the engine ECU wiring.
Replace engine oil and high-quality synthetic filters every 30,000km or annually.
Drain air reservoirs weekly to prevent water ingress into the braking system.
Perform regular cleaning of the intercooler fins to maintain turbo efficiency.
Monitor AdBlue dosing system for crystallisation in the exhaust manifold.
Check all rubber suspension bushings for NZ road fatigue and cracking.
Estimated repair costs if issues arise
Always keep a contingency fund for electronic shifting faults as these units often require specialist recalibration.
The OM906LA is robust, but fuel system repairs are high-cost; use only premium diesel to prolong life.
Replace in pairs if one fails; NZ's uneven secondary roads accelerate bag perishing.
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Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer