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Mercedes-benz C vs Mercedes-benz Viano v350: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Mercedes-benz C
78%
MOT pass rate · 675,043 vehicles
Mercedes-benz Viano v350
62%
MOT pass rate · 2 vehicles
Verdict: On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz Viano v350 (62%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mercedes-benz C Mercedes-benz Viano v350
MOT pass rate 78% ✓ 62%
MOT failure rate 22% ✓ 38%
Faults & advisories per test 1.7 ✓ 2.6
Dangerous-fault share 3% ✓ 14%
Average mileage 112,156 mi 144,756 mi
Sample size (vehicles) 675,043 2

Most common faults

Mercedes-benz C

  1. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  3. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Under-trays fitted obscuring some underside components
  6. Nearside Front Tyre worn close to the legal limit (4.1.E.1)

Mercedes-benz Viano v350

  1. Nearside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e))
  2. Offside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e))
  3. Nearside Front Play in steering rack inner joint(s)
  4. Nearside Front Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))
  5. Offside Front Anti-roll bar linkage ball joint dust cover severely deteriorated (5.3.4 (b) (i))
  6. Offside Front Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Reliability FAQ

On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz Viano v350 (62%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mercedes-benz C report Full Mercedes-benz Viano v350 report Most reliable cars

Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.