Know Your MOT
13.6%fail rate

Dodge Viper common MOT failures and failure rate

What a Dodge Viper fails its MOT on, from real DVSA test data, and the part that resolves each item.

Based on 914 MOT tests in DVSA data.

About 13.6% of MOT tests recorded on the Dodge Viper in DVSA data end in a failure. The same handful of items account for most of them.

Its most common failure is lamps & electrical, which makes up 43.5% of the Dodge Viper's failures, followed by lamps & electrical, suspension, registration plate, exhaust & emissions. Each item below links to the part that resolves it. Confirm the exact fitment against your registration or VIN before buying, and have safety-critical work done by a competent mechanic.

What it fails on, and why

Lamps & electrical43.5% 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.

Suspension24.2% of failures

Suspension failures usually mean a worn or snapped coil spring, a leaking shock absorber, or play in a lower arm ball joint or bush. The tester checks for corrosion, fractures and excessive movement. A broken front spring is one of the most common failures on higher-mileage cars and is a straightforward replacement.

Registration plate22.6% of failures

A missing, damaged, dirty or incorrectly-spaced number plate, or one using the wrong font, will fail. A replacement plate is inexpensive.

Exhaust & emissions19.4% of failures

Exhaust failures cover leaks, insecure mountings and emissions over the limit. A blowing exhaust, a failed lambda reading or a diesel that smokes beyond the limit will fail.

Other12.9% of failures

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

Visibility/wipers12.1% 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.

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. These are the usual parts; confirm the exact fitment against your registration or VIN before buying.

For the lamps & electrical failure: Dodge Viper headlight and indicator bulbsSearch Amazon for Dodge Viper headlight and indicator bulbsaffiliate searchFind Dodge Viper headlight and indicator bulbs on eBayaffiliate
For the suspension failure: Dodge Viper suspension springs and shock absorbersSearch Amazon for Dodge Viper suspension springs and shock absorbersaffiliate searchFind Dodge Viper suspension springs and shock absorbers on eBayaffiliate
For the registration plate failure: Dodge Viper number plateSearch Amazon for Dodge Viper number plateaffiliate searchFind Dodge Viper number plate on eBayaffiliate
For the exhaust & emissions failure: Dodge Viper exhaustSearch Amazon for Dodge Viper exhaustaffiliate searchFind Dodge Viper exhaust on eBayaffiliate
For the visibility/wipers failure: Dodge Viper wiper bladesSearch Amazon for Dodge Viper wiper bladesaffiliate searchFind Dodge Viper wiper blades on eBayaffiliate

Other models

Dodge Caliber MOT failures33.4% failure rateDodge Nitro MOT failures30.0% failure rateDodge Ram MOT failures19.7% failure rateFord Fiesta MOT failures27.1% failure rate

Sources: DVSA MOT History API: MOT test results and defect data ยท DVSA MOT testing data for Great Britain