MG

MG Zt (2006)

274 real MOT outcomes analysed • 74.4% first-time pass rate

2006 MG Zt

CarHunch analysed 274 real MOT records for the 2006 MG Zt. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2006 MG ZT passes its MOT first time in only 74.4% of cases, well below the UK average of 80%, and over a third of these cars have recorded dangerous defects during their MOT history—a significant red flag for any prospective buyer. Diesel versions are particularly troublesome, with just a 69.7% pass rate compared to 79% for petrol models, suggesting engine and emission issues may plague the oil-burning variants.

At an average mileage of 72,878 miles for a car now 18 years old, these ZTs have seen reasonable use rather than severe neglect, yet they're generating 4.08 failures and 18.1 advisories per vehicle on average—indicating widespread wear across multiple systems. If you're considering one, prioritise a pre-purchase inspection that specifically checks the diesel engine (if applicable), cooling system, and brakes, since the dangerous defect rate suggests these cars often hide serious faults until the MOT test.

We have limited data for the 2006 MG Zt — treat the figures below as indicative rather than definitive.

⚠️ Over 1 in 5 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
74.4%
UK average ~80%
Below average
Dangerous (ever)
36.1%
At least once in MOT history
Check this vehicle
Avg failures / car
4.08
Over 15.1 tests on record
High
Typical mileage
48k
Middle half: 36k–63k
For context

These stats describe 274 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.

Buyer beware — pass it on

What tends to go wrong

Across 274 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 71.5%
Nearside Rear Tyre worn close to the legal limit · Nearside Front Tyre worn close to the legal limit · Offside Rear Tyre worn close to the legal limit · …
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Brake wear 42.7%
Offside Front Brake pipe slightly corroded · Nearside Front Brake pipe slightly corroded · Parking brake: efficiency below requirements · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Lighting 28.4%
Supplementary Restraint System warning lamp indicates a fault
Usually cheap to fix. Worth confirming all lights work before collecting.

Data covers a 3-year window centred on 2006.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 274 MG Zt cars.

UK

Before you buy a 2006 MG Zt

Based on MOT data from 274 vehicles — here's what to check.

  • 📋 Check the full MOT history. 36.1% 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.
  • 🔍 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 ClickMechanic
  • 📄 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 carVertical Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (51%) 139 78.9% 2.94
Diesel (49%) 135 69.7% 5.25

Colour Breakdown

Based on 13,942 MG Zt vehicles registered in the UK — across all years. From DVLA registration records.

Grey 25.5%
3,558
Blue 23.8%
3,313
Silver 17.3%
2,417
Red 15.6%
2,180
Green 8.7%
1,211
Black 8.4%
1,173
Yellow 0.4%
49
Purple 0.1%
11
Bronze 0.1%
8
Orange 0.1%
8
White 0.1%
7
Gold 0.1%
7

Mileage Distribution

Most 2006 MG Zt 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.

48,367
typical
35,635
low mileage
62,644
high mileage

Half of all 2006 MG Zt vehicles fall between 35,635 and 62,644 miles.

Is the mileage you're seeing normal?
Under 35,635 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
35,635–62,644 miles — normal for age. This is where most 2006 MG Zts sit.
Over 84,569 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2006 MG Zt — Still on the Road

Numbers are thinning — 30% of 2006 MG Zts are still active.

Numbers are declining — 67 vehicles still getting MOTs in 2025 (30% of peak).

222 67 2014 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* 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

15.1
Avg MOT tests per vehicle
4.08
Avg failures per vehicle
18.1
Avg advisories per vehicle
Other model years — MG Zt: All Zt years → Which year to buy? →
2001 2002 2003 2004 2005

Or browse all models: MG →

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Compare with another model

See how the 2006 MG Zt stacks up against a rival.

Buyer beware — pass it on