Should I check the MOT history before buying a 1991 Citroen Zx?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 1991 Citroen Zx?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 1991 Citroen Zx?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 1991 Citroen Zx reliable?

Based on MOT data from 1,689 vehicles, the 1991 Citroen Zx has a first-time MOT pass rate of 62.6%, indicating average reliability for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 1991 Citroen Zx?

The most frequently recorded MOT issues on the 1991 Citroen Zx are: Parking brake: efficiency below requirements (27.6% of vehicles), Offside Front Tyre worn close to the legal limit (13.9% of vehicles), Oil leak (13.5% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 1991 Citroen Zx?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Citroen Zx (1991)

1,689 real MOT outcomes analysed • 62.6% first-time pass rate

1991 Citroen Zx

CarHunch analysed 1,689 real MOT records for the 1991 Citroen Zx. 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 1991 Citroen ZX has a first-time MOT pass rate of 62.6%, well below the UK average of 80%, which signals meaningful reliability concerns for a car now over 30 years old. Fourteen percent of these vehicles have recorded dangerous defects at some point, a reasonably modest figure that suggests most examples are fundamentally safe, though you'll want a pre-purchase inspection.

At an average mileage of 107,386 miles for cars this age, these ZXs have been driven fairly hard, and that's reflected in the 1.4 failures and 2.8 advisories per vehicle—both indicators that wear-and-tear issues are common. Before buying, budget for brake work, suspension repairs, and corrosion remediation, and have any candidate checked by a specialist familiar with French cars of this era.

The 1991 Citroen Zx has a below-average first-time pass rate (62.6% vs ~80% UK average) — check the specific vehicle's full MOT history carefully before buying.

⚠️ Around 1 in 8 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

62.6%

UK average ~80%

Below average

Dangerous (ever)

14%

At least once in MOT history

Check this vehicle

Avg failures / car

1.4

Over 3.7 tests on record

High

Typical mileage

101k

Middle half: 83k–122k

For context

⚠️ Below average. More vehicles in this cohort fail their first MOT than typical. Scrutinise this vehicle's history — look for recurring issues, not just the latest result.

🔧 Expect consumable spend. An average of 2.8 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.

🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 1,689 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 1,689 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Brake wear 27.6%

Parking brake: efficiency below requirements · Service brake: efficiency below requirements · Brakes imbalanced across an axle · …

Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Tyre wear 13.9%

Offside Front Tyre worn close to the legal limit · Nearside Front Tyre worn close to the legal limit · Offside Front Tyre tread depth below requirements of 1.6mm · …

Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Other issues 13.5%

Oil leak · Nearside Front constant velocity joint gaiter split · Offside Front constant velocity joint gaiter split

Suspension & steering 11.2%

Offside Front Suspension component mounting prescribed area is excessively corroded

Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Exhaust & emissions 11.2%

Exhaust emissions carbon monoxide content excessive · Rear Exhaust has a major leak of exhaust gases

Data covers a 3-year window centred on 1991.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 1,689 Citroen Zx cars.

Before you buy a 1991 Citroen Zx

Based on MOT data from 1,689 vehicles — here's what to check.

📋 Check the full MOT history. 14% 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 →
📄 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 Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (88%)	1,486	62.3%	1.4
Diesel (12%)	203	64.9%	1.41

Colour Breakdown

Based on 82,298 Citroen Zx vehicles registered in the UK — across all years. From DVLA registration records.

Red 24.9%

20,476

Green 21.7%

17,842

Blue 18%

14,823

White 12.3%

10,087

Silver 8.9%

7,353

Black 6.4%

5,263

Grey 6.2%

5,096

Beige 1.1%

915

Gold 0.2%

193

Maroon 0.2%

138

Purple 0.1%

Brown 0.1%

Mileage Distribution

Most 1991 Citroen Zx 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.

101,123

typical

82,969

low mileage

121,982

high mileage

Half of all 1991 Citroen Zx vehicles fall between 82,969 and 121,982 miles.

Is the mileage you're seeing normal?

✓ Under 82,969 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.

✓ 82,969–121,982 miles — normal for age. This is where most 1991 Citroen Zxs sit.

⚠ Over 164,675 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

1991 Citroen Zx — Still on the Road

Numbers are thinning — 35% of 1991 Citroen Zxs are still active.

Numbers are declining — 13 vehicles still getting MOTs in 2017 (35% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2017.

MOT History Averages

3.7

Avg MOT tests per vehicle

1.4

Avg failures per vehicle

2.8

Avg advisories per vehicle

Other model years — Citroen Zx: All Zx years → Which year to buy? →

1992 1993 1994 1995 1996 1997 1998

Or browse all models: Citroen →

Compare with another model

See how the 1991 Citroen Zx stacks up against a rival.

Buyer beware — pass it on