Audi
1,516 MOT tests analysed. sits above the UK fleet average — here's where RS 4 Carbon Black Tfsi Quat As pass, fail, and end up on the retest sheet.
That's 16.8 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
94.3%
Pass-after-fix
0.6%
Fail
4.3%
Avg miles
30,326
Pass + Pass-after-fix + Fail = 100%
Petrol cars first registered from January 2006 meet Euro 4 — compliant in London ULEZ, Birmingham CAZ, Bristol CAZ, and Glasgow LEZ.
Performance by cohort
2 year bands · 1,516 tests
Pass rate drops 1.5 points across the cohorts — recent RS 4 Carbon Black Tfsi Quat A examples are doing worse than the early cars at the same tested age.
Pass
95.0%
Fail
4.1%
PRS
0.5%
Avg mileage at test
33,147 mi
Pass
93.4%
Fail
4.6%
PRS
0.7%
Avg mileage at test
27,159 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 1,516 MOT tests, the Rs 4 Carbon Black Tfsi Quat A returns 94.3% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is windscreen damage. A tyre with the cords showing and tyre tread under the limit round out the top three. Average tested mileage sits at 30,326, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
Filter failures:
Hide categories
Tick a category to hide it from rankings sitewide. Saved in this browser only.
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
25 occurrences · 1.6% of tests
A tyre cords visible or damaged
18 occurrences · 1.2% of tests
Tyre tread depth not in accordance with the requirements
13 occurrences · 0.9% of tests
A tyre seriously damaged
13 occurrences · 0.9% of tests
A tyre seriously damaged
6 occurrences · 0.4% of tests
A headlamp cleaning device inoperative in the case of LED or gas discharge systems (HID)
5 occurrences · 0.3% of tests
Number plate does not conform to the specified requirements
5 occurrences · 0.3% of tests
A tyre seriously damaged
4 occurrences · 0.3% of tests
a brake lining or pad worn below 1.5mm
3 occurrences · 0.2% of tests
Wiper blade defective
3 occurrences · 0.2% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 2 failures
£120–£190
If every one of this RS 4 Carbon Black Tfsi Quat A's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
Try the calculator
Build your own retest budget.
Year-band analysis
First-time MOT pass rate split by registration band. A 1.6-point gap between bands is modest — the year you buy Audi RS 4 Carbon Black Tfsi Quat A makes a small but real difference to MOT outcomes.
Best band to buy
95.0%
2018–2020 registration
the 2018–2020 band climbs to 95.0% — a 1.6-point improvement. Failures here are mostly wear items: damaged but not adversely affecting driver's view, tread depth below requirements of 1.6mm — the structural issues that drag down older examples don't appear in the top-10 for this band.
Band to be cautious about
93.4%
2021+ registration
On the 2021-on band, the data shows a 93.4% pass rate against a fleet average of 95.0% on the newer band. The main culprits logged at test: damaged but not adversely affecting driver's view, has ply or cords exposed, and has a cut in excess of the…. Average mileage on test for this band is 27,159 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2018-2020 (95.0% first-time pass). Worst band to avoid: 2021+ (93.4% pass). That's a 1.6-point spread across 717 older tests and 799 newer ones — year of build makes a material difference on this model.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
My Motor World · affiliate
Affiliate links — small commission, no extra cost to you.
Summit
Summit ADRG-215 Audi Replacement Stick-On Tinted Mirror Glass RHS
£9.89
View at My Motor World →
Summit
Summit ADRG-216 Audi Replacement Stick-On Tinted Mirror Glass LHS
£14.29
View at My Motor World →
Draper Expert
Draper Expert Oil Filter Socket for Audi, BMW, Mercedes-Benz, Porsche and VW
£18.69
View at My Motor World →
Draper Expert
Draper Expert Audi/VW Drain Plug Key, 1/2" Sq. Dr.
£21.99
View at My Motor World →
Click Mechanic · affiliate
Affiliate links — small commission, no extra cost to you.
Mobile mechanic · UK-wide
Book a mechanic at your door.
Fixed-price quotes upfront. No garage needed. Click Mechanic sends a vetted local mechanic to you — home, work, or roadside.
Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own an RS 4 Carbon Black Tfsi Quat A and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.
