Mercedes-Benz 300

Live market prices, listings, and how many are still on the road.

Mercedes-Benz 300 — market at a glance Median asking £22,132

Recorded auction results and live UK asking prices for this model are below, along with how many are still on the road. Our own sold-price comparables are still building.

Still on UK roads

Licensed in Great Britain 4,547 as of 2026 Q1

Declared off-road (SORN) 9,651 stored, restored or resting

Peak on the road 72,503 in 1999 — 94% gone since

Vehicle counts contain public sector information licensed under the Open Government Licence v3.0 — DfT/DVLA vehicle licensing statistics (table VEH0120, Great Britain), grouped by generic model. Counts cover all body types and fuels registered under this model name.

MOT pass rate & common faults

MOT pass rate 81.3% of 7,453 tests

Typical MOT mileage 105,000 median recorded, miles

MOT pass rate by year — declining, down 0.6 points since 2020:

Excludes 2024 — that year covers a different number of tests from the rest of the series, so the rate is not comparable with the years shown.

Most common failure areas — share of failed tests citing each area (a car can fail on more than one), from 1,392 sampled fails:

Lamps, Reflectors and Electrical Equipment	17.2%
Brakes	13.1%
Suspension	12.9%
Body, Chassis, Structure	9.4%
Visibility	8.0%

MOT figures contain public sector information licensed under the Open Government Licence v3.0 — DVSA anonymised MOT tests and results (Great Britain), class 4 (cars & light vehicles), 2024. Pass rate is measured across first (initial) MOT tests only; a pass counts a certificate issued outright or after minor repair at the station. Grouped by generic model.

Live UK market — what they’re listed at

Median asking £22,132 midpoint of live UK listings

Listings live 55 range £550–£99,989

Typical time listed 12d median, since tracking began

Listing type 93% classified · 7% auction

What’s for sale by price — how the live UK listings split by asking price:

Price band	Listings	Share
Under £5k	8	15%
£5k–£10k	4	7%
£10k–£20k	11	20%
£20k–£35k	23	42%
£35k–£50k	5	9%
£50k–£75k	1	2%
£75k–£100k	3	5%

Asking by mileage — median live UK asking price by odometer band (the live counterpart to recorded sales above):

Mileage	Median asking	Listings
Under 40k mi	£31,448	20
40–80k mi	£23,500	17
80–120k mi	£14,488	5

Asking figures are live, de-duplicated statistics from the eBay UK and dealer listings we currently track for this model — the same cars shown in “for sale now”. Asking prices are not sold prices.

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