2013 Audi A6 S Line TDI 2.0L Heavy oil · CH56 CSH

The 2013 Audi A6 S Line TDI has a clean MOT history, with its most recent test on 2026-07-10 resulting in a pass with no recorded defects or advisories. Given the absence of prior failures or advisories in the DVSA records, the maintenance trend is stable and consistent, indicating that the vehicle has been kept in a satisfactory condition up to this point. There is no evidence of recurring issues or progressive wear that might suggest underlying mechanical degradation, though the lack of a full service history or detailed maintenance logs means potential hidden problems could exist beyond what the MOT inspectors evaluated. The vehicle’s recorded mileage of 126,360 miles is representative of its age—approximately 13 years old—with an annual usage rate of around 9,720 miles, which is within the expected range for a car of this age and class. The mileage accumulation appears steady rather than erratic, which is positive for wear patterns, though the absence of a service history does not rule out periods of prolonged standing or lower usage. Prolonged idling or infrequent driving can accelerate issues like brake corrosion, suspension binding, or fluid degradation, so any extended periods without use should be factored into a thorough inspection, particularly focusing on the braking system, suspension components, and fluid integrity. For a prospective buyer, the most critical checks for this vehicle’s age and mileage profile should prioritise structural integrity, fluid condition, and wear-related components. Given its age, inspect the tyre sidewalls for signs of perishing or cracking, which can compromise safety and warrant replacement before they become hazardous. The 12-volt battery should be tested for capacity and corrosion on terminals, as older batteries may struggle under the increased demands of modern electronics and the TDI’s turbocharged powertrain. The braking system is particularly vulnerable to corrosion and binding when a vehicle stands for long periods, so visually inspect brake discs for rust, warping, or uneven wear, and check for any binding in the calipers. The suspension should be examined for worn or cracked bushes, signs of oil leakage from struts, and uneven spring wear, which could indicate progressive failure. Additionally, since the vehicle’s fluids—oil, coolant, and brake fluid—are subject to degradation over time, even if not replaced recently, they should be checked for contamination or sludge buildup, with a recommendation to replace them if they appear old or degraded. The exhaust emissions system should be inspected for leaks or excessive backpressure, which could indicate catalytic converter or manifold issues, especially given the TDI’s diesel powertrain. The exhaust manifold and catalytic converter should be free of corrosion or cracks, as diesel exhaust can accelerate rusting in these areas. Finally, the vehicle’s service book should be reviewed for any outstanding maintenance items, such as timing belt replacement (if applicable), turbocharger servicing, or suspension component replacements, as these are critical for long-term reliability. If the service history is incomplete, a professional inspection should confirm the absence of major mechanical issues before proceeding with purchase.