Sym Dd50 (2003)
2003 Sym Dd50
CarHunch analysed 215 real MOT records for the 2003 Sym Dd50.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 2003 SYM DD50 passes its MOT on first attempt 81.2% of the time, which is just fractionally above the UK average of 80%, suggesting broadly average reliability for a 20-year-old scooter. The 12.6% of vehicles that have recorded a dangerous defect is a manageable figure, so structural safety isn't a primary concern with this model.
These bikes are running at 10,105 miles on average, which is entirely typical for their age, and the relatively modest failure rate of 1.15 per vehicle tells you they're generally straightforward to keep roadworthy. With an average of 3.2 advisories per test, you should budget for minor wear items, but if you're considering one of these, have any prospective purchase checked thoroughly for brake and lighting condition before committing.
We have limited data for the 2003 Sym Dd50 — treat the figures below as indicative rather than definitive.
These stats describe 215 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.
What tends to go wrong
Across 215 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 2003.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 215 Sym Dd50 cars.
Before you buy a 2003 Sym Dd50
Based on MOT data from 215 vehicles — here's what to check.
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Check the full MOT history.
12.6% of these vehicles have had a dangerous defect recorded -
recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle. -
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Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price.
Inspection
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Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically.
History
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Colour Breakdown
Based on 1,060 Sym Dd50 vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 2003 Sym Dd50 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2003 Sym Dd50 vehicles fall between 5,582 and 13,754 miles.
2003 Sym Dd50 — Still on the Road
Numbers are thinning — 31% of 2003 Sym Dd50s are still active.
Numbers are declining — 11 vehicles still getting MOTs in 2023 (31% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2023.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.
MOT History Averages
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Compare with another model
See how the 2003 Sym Dd50 stacks up against a rival.