2006 Mercedes CLS 320 CDI Auto 3.0L Heavy oil · FFZ 5003

Consistent roadworthiness over the last eight years defines the history of this Mercedes CLS, which successfully cleared its most recent inspection on 10 August 2022 without a single recorded defect. While the vehicle experienced failed test attempts in 2018 and 2022, these were administrative or temporary setbacks rather than indicators of chronic mechanical degradation, as both instances were rectified immediately with subsequent passes. The absence of recurring advisories for suspension, structural corrosion, or braking components suggests that the vehicle has been presented for testing in a compliant state, though the lack of detailed advisory notes means that minor wear items may have been addressed out of sight of the official DVSA testing process. Accumulating 148,931 miles over two decades results in an average annual usage of approximately 7,447 miles, a figure that aligns with standard expectations for a luxury diesel saloon of this vintage. This moderate pace of accumulation typically places balanced stress on the drivetrain and chassis, avoiding the extreme fatigue associated with high-mileage fleet use while also bypassing the risks inherent in prolonged periods of inactivity, such as seized brake components or perished rubber seals. Prospective buyers should note that the vehicle has maintained a consistent testing cadence, which suggests it has remained in active service rather than experiencing significant gaps in operation that might otherwise lead to hidden deterioration of fuel systems or electronic control modules. Given the age and complexity of the 320 CDI powertrain, a test drive must prioritise an assessment of the automatic transmission and engine response. Listen specifically for any hesitation or jarring shifts during gear changes, as the high-torque output of this engine can accelerate wear on the transmission valve body and torque converter. During the drive, ensure the vehicle tracks straight under braking and acceleration; any deviation or pulling to one side may indicate fatigue in the multi-link suspension bushes or ball joints, which are common wear points on this chassis and often do not appear on MOT records until they reach a state of excessive play. Inspect the underbody and engine bay for evidence of oil misting or leaks, particularly around the turbocharger intake and the V-bank of the engine, as these are frequent sites for seal degradation on this specific diesel unit. While the MOT history is clear of structural corrosion warnings, the CLS platform is susceptible to subframe and brake line oxidation; verify that there is no audible grinding or metallic scraping when applying the brakes, which would signal that the discs or pads have reached their service limit despite the clean test record. Confirm that all electronic convenience features, including the seat adjustments and climate control, are fully operational, as the sophisticated electrical architecture of this generation can be costly to rectify if components fail.