Rover's last great saloon, now a bargain
Built from 2001 to 2005 before MG Rover's collapse, the ZT was a sportier take on the Rover 75 that represented arguably the best-built car Rover ever made. Now a cheap used buy with a cult following, particularly the rare V8 260 variant (only ~400 survivors from 883 built), which offers genuine Q-car performance for modest money.
We track 5 known issues across the MG ZT range, including 1 rated as safety-critical. Knowing which variants and configurations to approach with caution can save you from expensive surprises after purchase.
Found a MG ZT? Enter the reg to see which of our 5 known issues apply to that exact car, plus full MOT history and mileage checks.
ZT (2001–2005) — Petrol options included the 1.8 K-Series, 2.5 KV6, 4.6 V8, 4.6 V8, with 2.0 CDTi on the diesel side. Our database flags 5 known issues on this generation, 1 of which are rated as safety-critical. The most significant concern is Structural corrosion around suspension mounting points (£800–£2,000 to address).
The bodyshell structure around suspension mounting points suffers from severe corrosion that compromises the load-bearing integrity of the prescribed areas within 30cm of subframe and suspension component mounting points. This affects the fundamental structural safety of the vehicle and is a mandatory MOT failure. The problem is endemic across all engine variants and becomes critical as cars reach 15-20 years old, with salt exposure accelerating the deterioration.
Structural failure around suspension mounting points creates immediate safety risks including loss of control, wheel detachment, or suspension collapse. The car becomes unroadworthy and cannot pass MOT testing. Repair typically requires professional welding and structural reinforcement at costs that often exceed the vehicle's value.
Inspect the wheel arches, sills, jacking points and door bottoms carefully. Press gently on sills to check for soft spots. Look underneath for corrosion on structural components. Check the MOT history for corrosion-related advisories or failures.
The steel brake lines suffer from severe corrosion leading to brake fluid leaks and potential brake failure. This model shows exceptionally high failure rates for brake pipe corrosion, with ferrule corrosion also documented. The brake system design appears particularly vulnerable to salt corrosion, creating safety-critical failures that require immediate attention.
Brake line failure can result in complete loss of braking ability, creating extreme danger to occupants and other road users. The vehicle becomes immediately unroadworthy and must not be driven. Complete brake line renewal is typically required given the age and corrosion susceptibility of these vehicles.
Check brake disc condition for lipping or scoring. Test braking at moderate speed for pulling to one side or vibration through the steering wheel. Review MOT advisories for brake-related items.
Suspension components suffer from severe corrosion damage that compromises their structural integrity and safety function. The problem affects control arms, subframe components, and associated mounting hardware. MOT data shows this model has extraordinarily high failure rates for suspension component corrosion, with failure rates up to 398.1 times the national average on some variants.
Severely corroded suspension components can fail suddenly, causing loss of vehicle control and potential accidents. Worn suspension affects braking distances, handling stability, and tyre wear. The vehicle will fail MOT testing and may be deemed unroadworthy.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
The hydraulic power steering system on diesel variants suffers from fluid leaks and pump failure at high mileage. MOT data shows diesel ZTs fail power steering tests at significantly higher rates than the fleet average, particularly above 120,000 miles. The system uses a belt-driven pump that is prone to seal failure and internal wear.
Power steering failure makes the vehicle difficult and tiring to drive, particularly during parking maneuvers. Complete system failure can occur suddenly, creating safety risks in emergency situations. Pump replacement and system flush are typically required.
During the test drive, check the steering for excessive play, vibration or pulling to one side. Listen for groaning or whining when turning the wheel at low speed. Power steering fluid level and condition should be checked on hydraulic systems.
Rubber dust covers protecting suspension joints deteriorate rapidly, allowing dirt and water ingress that accelerates bearing and joint wear. The problem affects ball joint boots, CV joint gaiters, and other protective covers throughout the suspension system. While not immediately dangerous, failed dust covers lead to premature failure of the protected components.
Failed dust covers allow contamination of suspension joints, leading to accelerated wear and eventual joint failure. While not immediately dangerous, neglecting dust cover replacement typically results in expensive suspension component replacement within 12-24 months.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
For the full breakdown of all 5 tracked issues with repair costs, see the MG ZT common problems page.
Based on 11k real DVSA MOT tests, the MG ZT fails more often than average on several items. The biggest outlier is power steering fault at 55x the fleet average, followed by anti-roll bar links worn (37x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full MG ZT MOT failure breakdown for data at every mileage point.
Routine servicing (oil and filter change every 12k miles) typically costs £80–£120 at an independent garage.
The bigger-ticket items to budget for include timing belt (£400–£600).
See the full MG ZT service schedule for every interval and cost breakdown.
The MG ZT has some well-documented weak points, including 1 safety-critical issue that demand careful checking. The right example, properly maintained, can still be a sound purchase — but cutting corners on the pre-purchase inspection is not advisable. For the standard ZT, the later 2003-2005 cars benefit from production refinements and are most likely to have had the K-Series head gasket addressed. For the V8 260, all were built 2003-2005 and any well-documented survivor is desirable — look for full service history and evidence of proper specialist maintenance. The 2.5 V6 KV6 engine is the best compromise of performance and reliability in the standard range.
Before committing, check the car's full MOT history, verify the service record is complete, and if possible arrange a specialist inspection. Enter any registration into our free report to see the complete picture.
Get Car Wise maintains a database of known mechanical issues for every popular car on UK roads, tracking the faults that owners, specialists and DVSA data reveal.
When you run a report on a specific MG ZT, we cross-reference the exact variant, engine and age against our database of 5 known issues. Combined with full MOT history analysis, mileage verification and DVLA data, you get a complete picture before viewing.
Enter the registration for MOT history, mileage verification, known faults for that exact variant, and a Get Car Wise Score.
This guide was compiled from independent expert reviews, DVSA MOT data, specialist workshops and our own database of 5 known MG ZT issues. We are not affiliated with any source listed.