2000 — 2004
2.0L I4 HDi (DW10ATED)
Diesel
Accelerate in 4th gear from 1,500rpm and check for clutch slippage or vibrations. | Note: The DW10ATED 110bhp engine uses a Dual Mass Flywheel (DMF) which is prone to failure; many NZ owners convert to a Solid Mass Flywheel (SMF) to reduce future costs.
Operate the indicator stalks repeatedly and check for flickering headlights or 'ghost' clicking. | Note: Post-2001 'Multiplexed' models use the COM2000 unit which is a frequent failure point in Peugeots of this era, requiring a full unit replacement.
Drive over uneven surfaces and listen for 'clunking' from the rear. | Note: The 406 features a complex multi-link rear suspension with 'passive rear steer' bushes that wear out, causing poor handling and uneven tyre wear.
Listen for a loud humming or buzzing sound from the rear seat area when the ignition is turned to 'ON'. | Note: The in-tank fuel lift pump is a known weak spot; if it fails, the car will not start or will cut out unexpectedly.
Intermediate service: Oil and filter change using high-quality synthetic oil (Total Quartz 9000 recommended). Inspect brake pads and pollen filter.
Major service: Replace fuel filter and air filter. Inspect auxiliary drive belt and tensioners which can become noisy on the 2.0 HDi.
Critical: Cambelt (timing belt) and water pump replacement. Failure to do so risks catastrophic engine damage. Inspect crankshaft pulley (harmonic balancer) for rubber degradation.
Clean the EGR valve periodically to prevent carbon buildup and 'Anti-Pollution Fault' messages.
Check the lower engine 'P-bush' mount for cracking, as this causes excessive engine movement and exhaust stress.
Verify that the radiator cooling fans operate on both low and high speeds; resistors frequently fail.
Inspect the front suspension drop links; they are inexpensive but often cause annoying rattling on NZ gravel roads.
Monitor the health of the battery; low voltage in Peugeots causes various false sensor readings and BSI errors.
Estimated repair costs if issues arise
High priority every 100,000km or 10 years. Must be performed by a specialist with the correct locking tools.
Labor-intensive job. If the DMF is rattling, it is best to replace the entire clutch assembly simultaneously.
Common electrical fault. Sourcing a new unit is preferable to used parts which likely harbor the same defect.
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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