Diesel Citroen Grand C4 Picasso: MOT pass rate

57.6% of diesel Citroen Grand C4 Picassos pass the MOT first time, measured across 4,001 DVSA tests on that fuel type alone. Average mileage at test was 107,108.

Diesel against the other Citroen Grand C4 Picasso versions

Fuel Pass rate Tests
Diesel 57.6% 4,001
Petrol 59% 278
All Citroen Grand C4 Picasso57.7%4,280

Why the fuel type changes the number

Diesels carry DPFs, EGR valves and stricter smoke limits, so emissions and exhaust faults account for failures petrol cars never see.

On the Citroen Grand C4 Picasso specifically, petrol is the strongest at 59%, and this diesel version sits 0.1 points below the 57.7% model average.

What it means if you are buying one

There is little to choose between fuel types on this model, so decide on running costs and mileage rather than MOT record. Buying a damaged one? run it through the analyzer, check the exact car, decode the VIN and check the mileage before you bid.

Mileage is part of the answer

The average diesel Citroen Grand C4 Picasso had covered 107,108 miles at test, against 92,918 for the petrol. That is above average and into the range where cambelts and water pumps are due if they have not already been done, so ask for the service history rather than take the mileage on trust.

Fuel type and mileage are tangled together: diesels are usually bought by higher-mileage drivers, so some of any gap between fuels is the miles rather than the engine. The per-year figures on the Citroen Grand C4 Picasso page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Citroen Grand C4 Picasso

  1. Lamp emitted colour, position or intensity not in accordance with the requirements, 3.6% of tests (5.96x the national rate for this defect)
  2. Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 7.7% of tests (5.69x the national rate for this defect)
  3. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 8.7% of tests (5.68x the national rate for this defect)
  4. A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps, 4.8% of tests (5.42x the national rate for this defect)
  5. A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 10.2% of tests (4.59x the national rate for this defect)
  6. A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED, 4% of tests (3.24x the national rate for this defect)
  7. A suspension pin, bush or joint excessively worn, 14.6% of tests (2.9x the national rate for this defect)
  8. A steering ball joint with excessive wear or free play, 3.6% of tests (2.78x the national rate for this defect)
  9. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 4.6% of tests (2.71x the national rate for this defect)
  10. The aim of a headlamp is not within limits laid down in the requirements, 5.8% of tests (2.48x the national rate for this defect)

From 4,026 DVSA-tracked diesel Citroen Grand C4 Picasso tests, 2024, split out from the Citroen Grand C4 Picasso's other fuel types. DVSA testers marked 5.91% of these flagged defects as "dangerous", against 5.11% nationally. See which fuel type fails on the most dangerous defects nationally for how that compares across the whole fleet.

Most common MOT advisories on a diesel Citroen Grand C4 Picasso

Flagged but doesn't fail the car, a different list from the failures above.

  1. Lamp emitted colour, position or intensity not in accordance with the requirements, 5.8% of tests (4.23x the national rate for this defect), also fails
  2. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 14.7% of tests (2.64x the national rate for this defect)
  3. A suspension pin, bush or joint excessively worn, 30.1% of tests (2.25x the national rate for this defect), also fails
  4. A steering ball joint with excessive wear or free play, 2.9% of tests (2.18x the national rate for this defect), also fails
  5. Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 2.4% of tests (1.92x the national rate for this defect)
  6. Tyre tread depth not in accordance with the requirements, 42.9% of tests (1.61x the national rate for this defect)
  7. Brake disc or drum excessively weakened, insecure or fractured, 19.3% of tests (1.58x the national rate for this defect)
  8. Brake disc or drum significantly and obviously worn, 4.6% of tests (1.46x the national rate for this defect)
  9. Significant brake effort recorded with no brake applied indicating a binding brake, 2.9% of tests (1.44x the national rate for this defect)
  10. a brake lining or pad worn below 1.5mm, 13.1% of tests (1.41x the national rate for this defect)

From 4,026 DVSA-tracked diesel Citroen Grand C4 Picasso tests, 2024.

Other Citroen Grand C4 Picasso fuel types

All Citroen Grand C4 Picasso MOT data · Every model