Jawa 350/639 Reliability, MOT Pass Rate & Common Faults
Free Jawa 350/639 car check
Is the Jawa 350/639 reliable? We analysed 881 real MOT tests across 143 vehicles to find out.
Got a specific Jawa 350/639? Enter the reg for a free check:
The Jawa 350/639 is above average for reliability based on real UK MOT data. Common problems include stop lamp does not illuminate immediately a brake applies, steering headbearing has excessive free play and brake pedal has inadequate reserve travel. Here's everything you need to know before buying a used Jawa 350/639.
Jawa 350/639 Number Plates
Number plates registered to a Jawa 350/639. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Jawa 350/639 MOT Pass Rate by Year
How likely is a Jawa 350/639 to pass its MOT? Here's the pass rate for each registration year, newest first.
Jawa 350/639 Problems — What Goes Wrong?
The most common reasons a Jawa 350/639 fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Jawa 350/639 Mileage — What's Normal?
How many miles does a typical Jawa 350/639 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Jawa 350/639 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Jawa 350/639 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 1994 | 95 | 87.4% | 6,954 | 11,090 | 18,037 |
| 1993 | 155 | 90.3% | 5,241 | 8,105 | 11,437 |
| 1992 | 157 | 85.4% | 7,553 | 16,010 | 19,693 |
| 1991 | 191 | 84.8% | 9,796 | 13,750 | 18,101 |
| 1990 | 201 | 89.1% | 6,734 | 11,122 | 18,498 |
How Long Does a Jawa 350/639 Last?
Based on 143 Jawa 350/639 vehicles on UK roads.
Jawa 350/639 Mileage Distribution
Total mileage recorded across all Jawa 350/639 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 Jawa 350/639
Based on MOT pass rates across all registration years with sufficient test data.
90.3% MOT pass rate from 155 tests
84.8% MOT pass rate from 191 tests
The best year to buy a used Jawa 350/639 is 1993, which has the highest MOT pass rate at 90.3% across 155 tests. The 1991 model year has the lowest pass rate at 84.8% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Jawa 350/639 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Jawa 350/639 THIS CAR | 87.2% | 881 | 11,178 mi | 36 yrs |
| Jawa 210 | 87.5% | 614 | 315 mi | 35 yrs |
| Jawa 350 | 86.4% | 531 | 8,912 mi | — yrs |
| Jawa Economy | 94.2% | 225 | 72 mi | 35 yrs |
| Peugeot 2008 Allure Premium + P-tch Ss | 91% | 686 | 22,741 mi | — yrs |
Compared to the Jawa 210 (87.5% pass rate) and the Jawa 350 (86.4% pass rate), the Jawa 350/639 sits in the middle of the pack on MOT reliability.
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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 Jawa 350/639Should you buy a used Jawa 350/639?
The Jawa 350/639 has an overall MOT pass rate of 87.2% across 881 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 Jawa 350/639 are stop lamp does not illuminate immediately a brake applies (12 recorded failures), steering headbearing has excessive free play (9), and brake pedal has inadequate reserve travel (4). 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 Jawa 350/639 owner drives around 304 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 Jawa 350/639 models stay on UK roads for around 36 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.