MOT pass rates / Mercedes-Benz

Mercedes-Benz Citan 109 Pure CDI MOT pass rate and common failures

Of 1,815 class-4 normal initial MOT tests in 2024, 67.8% passed without an initial fail or PRS repair — below the 71.2% UK average.

Pass rate by vehicle age

Common initial failure categories

These are the items that most often caused a Mercedes-Benz Citan 109 Pure CDI to fail its first test, with what each one usually means for a buyer.

• Stop Lamp — 10.6% of tests. A brake light out. Usually a bulb.
• Registration Plate Lamp(s) — 5.5% of tests. The light over the number plate is out. A bulb.
• Mechanical Brake Components — 5.3% of tests. Worn discs, pads or callipers. Routine wear, but it should be priced into the deal.
• Wipers — 4.2% of tests. Worn wiper blades. Minutes to fix, and a fair hint that servicing was skipped.
• Position Lamps — 4.1% of tests. A side or tail light out. Usually a bulb.
• Condition — 4.1% of tests. Corrosion, damage or wear on a tested component. Worth seeing in person, as the cost ranges from trivial to structural.

What this does and does not tell you

A pass rate describes how a population of cars behaved on test day. It says nothing about how one car was driven, serviced or repaired, and an MOT does not cover the engine, clutch or gearbox at all.

Use it to know what to look for: if tyres and brakes dominate the list, price those in; if corrosion or suspension appears, get underneath the car. Then check the individual vehicle — its MOT history shows whether these same items have been advised year after year, and its mileage record shows whether the reading is consistent.

Before you buy

• Stop Lamp — 10.6% of tests in 2024. A brake light out. Usually a bulb.
• Registration Plate Lamp(s) — 5.5% of tests in 2024. The light over the number plate is out. A bulb.
• Mechanical Brake Components — 5.3% of tests in 2024. Worn discs, pads or callipers. Routine wear, but it should be priced into the deal.
• Wipers — 4.2% of tests in 2024. Worn wiper blades. Minutes to fix, and a fair hint that servicing was skipped.
• Check the actual Citan 109 Pure CDI — These figures describe the model group. Enter the registration for that vehicle's free MOT, tax and mileage record before you pay a deposit.

Other Mercedes-Benz models

• Mercedes-Benz C — 74.4% pass
• Mercedes-Benz A-class — 74.6% pass
• Mercedes-Benz E — 76.9% pass
• Mercedes-Benz A — 87.8% pass
• Mercedes-Benz Vito — 66.8% pass
• Mercedes-Benz GLC — 86.5% pass

See every Mercedes-Benz model MOT pass rate

Common questions

What is the Mercedes-Benz Citan 109 Pure CDI MOT pass rate?

67.8% of 1,815 class-4 initial MOT tests on the Mercedes-Benz Citan 109 Pure CDI passed first time in 2024 — below the 71.2% UK average.

Why does the Citan 109 Pure CDI fail its MOT?

The most common initial failure categories are stop lamp (10.6% of tests), registration plate lamp(s) (5.5% of tests), mechanical brake components (5.3% of tests), wipers (4.2% of tests).

Does this tell me whether one particular Citan 109 Pure CDI is a good buy?

No. These are population statistics. Enter that car's registration for its own MOT, tax and mileage record, then check outstanding finance, write-off and stolen markers before buying.

Methodology and limitations

MOT outcomes describe testable items at the time of inspection. They are not a measure of overall mechanical reliability.

Scope: Class 4 normal initial MOT tests completed in 2024. Models require at least 1,000 qualifying tests. Duplicate source rows are removed using official DVSA test IDs.

Source: Driver and Vehicle Standards Agency anonymised MOT tests and results, 2024, published 2025-05-23 under the Open Government Licence v3.0.