Ktm 400 Exc Reliability, MOT Pass Rate & Common Faults
Free Ktm 400 Exc car check
Is the Ktm 400 Exc reliable? We analysed 5,491 real MOT tests across 599 vehicles to find out.
Got a specific Ktm 400 Exc? Enter the reg for a free check:
The Ktm 400 Exc is above average for reliability based on real UK MOT data. Common problems include wheel bearings have excessive free play, reflector on motorcycle missing and stop lamp does not illuminate immediately a brake applies. Here's everything you need to know before buying a used Ktm 400 Exc.
Ktm 400 Exc — specs & performance
Verified from DVLA & DVSA recordsA snapshot of the engine, performance, dimensions, fuel economy and running costs for the Ktm 400 Exc — drawn from official DVLA vehicle records and the DVSA fuel-economy database.
Engine & Performance
- Engine size
- 400cc
- Fuel type
- Petrol
Body & Dimensions
- Body type
- Motorcycle
- Common colour
- Black
- Wheel plan
- 2 Wheel
Fuel Economy
Tax & Emissions
- Emission class
- Not Available
- Road tax (12 mo.)
- £43
- Road tax (6 mo.)
- £N/A
Ktm 400 Exc Number Plates
Number plates registered to a Ktm 400 Exc. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Ktm 400 Exc MOT Pass Rate by Year
How likely is a Ktm 400 Exc to pass its MOT? Here's the pass rate for each registration year, newest first.
Ktm 400 Exc Problems — What Goes Wrong?
The most common reasons a Ktm 400 Exc fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Ktm 400 Exc Mileage — What's Normal?
How many miles does a typical Ktm 400 Exc owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Ktm 400 Exc MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Ktm 400 Exc year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2010 | 334 | 84.7% | 2,205 | 3,920 | 5,824 |
| 2009 | 762 | 83.7% | 2,380 | 3,870 | 5,732 |
| 2008 | 194 | 81.4% | 2,298 | 4,124 | 8,315 |
| 2007 | 224 | 81.3% | 2,106 | 3,748 | 6,735 |
| 2006 | 794 | 81.1% | 2,617 | 4,096 | 6,306 |
| 2005 | 1,191 | 80.9% | 2,358 | 3,982 | 6,149 |
| 2004 | 1,359 | 81.9% | 1,855 | 3,208 | 5,506 |
| 2002 | 372 | 78.5% | 728 | 1,680 | 4,672 |
| 2001 | 109 | 78.9% | 1,028 | 2,224 | 4,756 |
| 2000 | 69 | 81.2% | 814 | 3,814 | 8,698 |
How Long Does a Ktm 400 Exc Last?
Based on 599 Ktm 400 Exc vehicles on UK roads.
Ktm 400 Exc Mileage Distribution
Total mileage recorded across all Ktm 400 Exc MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Ktm 400 Exc
Based on MOT pass rates across all registration years with sufficient test data.
84.7% MOT pass rate from 334 tests
78.5% MOT pass rate from 372 tests
The best year to buy a used Ktm 400 Exc is 2010, which has the highest MOT pass rate at 84.7% across 334 tests. The 2002 model year has the lowest pass rate at 78.5% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Ktm 400 Exc Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Ktm 400 Exc THIS CAR | 81.6% | 5,491 | 3,758 mi | 26 yrs |
| Ktm 125 | 76.8% | 13,595 | 10,169 mi | 21 yrs |
| Ktm 950 | 86.8% | 11,776 | 15,596 mi | 23 yrs |
| Ktm 640 LC4-E | 83.6% | 9,903 | 8,082 mi | 27 yrs |
| MG Hs Excite S-a | 88% | 9,772 | 24,477 mi | — yrs |
Compared to the Ktm 125 (76.8% pass rate) and the Ktm 950 (86.8% pass rate), the Ktm 400 Exc sits in the middle of the pack on MOT reliability.
Found a Ktm 400 Exc you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Ktm 400 ExcShould you buy a used Ktm 400 Exc?
The Ktm 400 Exc has an overall MOT pass rate of 81.6% across 5,491 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Ktm 400 Exc are wheel bearings have excessive free play (130 recorded failures), reflector on motorcycle missing (114), and stop lamp does not illuminate immediately a brake applies (91). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Ktm 400 Exc owner drives around 336 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Ktm 400 Exc models stay on UK roads for around 26 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.