MOT failure rate and common problems for the Dennis S/D, and how to check your own car by registration.

Updated 05 September 2026.

13.7%fail rate

Dennis S/D MOT failure rate

What a Dennis S/D fails its MOT on, and the part that fixes each.

What it fails on, and why

Lamps & electrical57.1% of failures

Lighting is the single most common MOT failure and the cheapest to put right. A blown headlight, brake-light or number-plate bulb, a cracked lens, or a headlamp beam that points too high or low will all fail. Most are a two-minute bulb swap.

Visibility/wipers14.3% of failures

Visibility failures include torn or smearing wiper blades, a washer jet that does not reach the screen, and chips or cracks in the driver's swept area. Blades and washer fluid are quick, cheap fixes.

Brakes14.3% of failures

Brake failures cover worn pads and discs, an imbalance between wheels, corroded or scored discs, or a binding caliper. Braking efficiency is measured on a rolling road, so a spongy or pulling brake shows up as a low reading.

Seat belts14.3% of failures

Seat-belt failures are frays, cuts, corroded anchorages, or a belt that will not lock under a sharp pull or retract properly.

Other14.3% of failures

This covers a range of smaller items, from a non-working horn to a warning light left on.

Steering14.3% of failures

Steering faults are typically worn track-rod ends or ball joints, play in the rack, or a split gaiter letting grease out and dirt in. Excessive free play at the wheel fails.

The parts that fix each

If your car has just failed, you have 10 working days to fix the items and get a free partial retest. Confirm the exact fitment against your registration or VIN before buying.

For the lamps & electrical failure: Dennis S/D headlight and indicator bulbsShop Dennis S/D headlight and indicator bulbs on Amazonaffiliate Find Dennis S/D headlight and indicator bulbs on eBayaffiliate

For the visibility/wipers failure: Dennis S/D wiper bladesShop Dennis S/D wiper blades on Amazonaffiliate Find Dennis S/D wiper blades on eBayaffiliate

For the brakes failure: Dennis S/D brake pads and discsShop Dennis S/D brake pads and discs on Amazonaffiliate Find Dennis S/D brake pads and discs on eBayaffiliate

For the seat belts failure: Dennis S/D seat beltsShop Dennis S/D seat belts on Amazonaffiliate Find Dennis S/D seat belts on eBayaffiliate

For the steering failure: Dennis S/D steering track rod endsShop Dennis S/D steering track rod ends on Amazonaffiliate Find Dennis S/D steering track rod ends on eBayaffiliate

Other models

Dennis Unknown MOT failures17.8% failure rate Dennis Elite MOT failures8.1% failure rate Dennis Dart MOT failures19.4% failure rate Ford Fiesta MOT failures27.1% failure rate

Questions and answers

What is the MOT failure rate of the Dennis S/D?

It fails 13.7% of its MOT tests across the DVSA record, from 51 tests.

What do these cars fail their MOT on most?

The most common failure area is lamps & electrical, at 57.1% of this model's failures.