2015 Mercedes-Benz GL 3.0L Diesel · F10 RCW

The September 2025 MOT at 107,415 miles resulted in a pass, confirming roadworthiness, yet the recurring 5.3.3 (b) (i) sub‑frame corrosion advisory and 5.3.4 (a) (i) anti‑roll bar linkage wear indicate that mechanical condition is stable but not improving. Mileage has risen from 39,203 miles in the 2018 failure test to 107,415 miles in the 2025 test, an increase of 68,212 miles over seven years, averaging 9,745 miles per year, which matches the typical 9,765 miles per year for an 11‑year‑old GL; the only notable gap is the two‑year interval between the 2018 and 2020 records, after which mileage grew steadily each annual test. A buyer should therefore examine the condition of the near‑side front drive shaft constant‑velocity boot for deterioration, inspect the rear sub‑frame and front anti‑roll bar for rust that could compromise structural integrity, verify current brake pad thickness and disc condition given the 2018 failure on pad wear, and assess tyre wear patterns that show consistent inner‑edge erosion, all of which point to potential suspension, alignment and corrosion issues. Overall, while the vehicle meets the legal threshold for roadworthiness, the persistence of these advisories suggests that neglect of suspension components and underlying rust may accelerate wear, so a thorough in‑person inspection of the highlighted parts is essential before purchase.