2021 Mercedes-Benz E 1.9L Diesel · WD21 TYK

The vehicle is currently roadworthy, but the maintenance history shows a trend of developing mechanical and electronic wear. The most recent test in April 2026 at 31,281 miles resulted in an initial failure due to a malfunctioning tyre pressure monitoring system and worn front brake discs. Although the vehicle passed upon re-test, the presence of worn discs indicates that the braking system is reaching the end of its primary service life, moving away from the clean record seen in previous years. The mileage pattern is consistent with a low-use executive vehicle, averaging approximately 6,200 miles per year. A gap of 10,000 miles exists between the April 2024 test at 20,547 miles and the March 2025 test at 30,085 miles, suggesting steady usage. While the low mileage generally preserves the drivetrain and engine components, the recorded advisories in early 2025 suggest that components like rubber couplings and joints are beginning to show degradation despite the low mileage intervals. A buyer must conduct a thorough in-person inspection of the front suspension, as the March 2025 test flagged play in both the nearside and offside front arm ball joints. The technician should also verify the rear prop shaft flexible coupling to ensure the deterioration has not progressed into cracking. Given the distorted nearside rear road wheel noted in 2025, checking for vibrations at speed is essential. Finally, the tyre pressure monitoring system must be confirmed as fully operational following the April 2026 failure to ensure the electronic fault was properly rectified.