Should I buy a 2018 BMW 5-Series 2.0 Petrol Automatic G30?

Explore common problems, estimated repair costs and practical checks for the 2018 BMW 5-Series 2.0 Petrol Automatic G30. Use this guide to help assess a used car, then unlock a personalised report for the exact vehicle you're considering.

Common problems

1Moderate Likelihood

Coolant vent/return pipe leaks

Coolant level drops between services, a sweet smell after a drive, or a warning to top up coolant; in worse cases steam or an overheating message can appear.

How to check

Warm the car fully, then let it idle for a few minutes after the drive and watch the temperature warnings and smell around the front of the car.

Estimated Repair Cost

£650

2Moderate Likelihood

Automatic gearbox low-speed shunt or hesitation

A pause when selecting drive, a lurch when creeping in traffic, or a slightly rubbery surge when accelerating gently from low speed.

How to check

Creep in slow traffic, make several gentle stop-start pullaways, and then accelerate smoothly from about 20 to 40 mph.

Estimated Repair Cost

£900

3Moderate Likelihood

Door moisture ingress affecting speakers or electrics

Distorted speaker sound, one door speaker cutting in and out, or dampness and water marks around the inner door trim after rain or washing.

How to check

Play music through all speakers and use the balance/fader controls while opening and closing the doors normally.

Estimated Repair Cost

£500

MOT Failure Rate

0%5%10%15%20%0–20,000 miles: 5.8% (99 failed / 1,710 tests)20,000–40,000 miles: 8.5% (408 failed / 4,794 tests)40,000–60,000 miles: 11.0% (388 failed / 3,520 tests)60,000–80,000 miles: 11.7% (200 failed / 1,710 tests)80,000–100,000 miles: 11.5% (67 failed / 583 tests)100,000–120,000 miles: 17.0% (42 failed / 247 tests)120,000–140,000 miles: 17.7% (14 failed / 79 tests)140,000–160,000 miles: 13.3% (4 failed / 30 tests)160,000–180,000 miles: 16.7% (1 failed / 6 tests)180,000–200,000 miles: 0.0% (0 failed / 2 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2018 BMW 5-Series 2.0 Petrol Automatic G30

BMW 5-Series buying questions

Is a 2018 BMW 5-Series worth buying?

It can be, but only if the individual car backs it up. For the 2018 BMW 5-Series 2.0 Petrol Automatic G30, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.

What common problems affect the BMW 5-Series (2018)?

The problem cards above list the model-level checks for this guide. Read them as priorities for inspection and paperwork review, not proof that every example will have those faults.

What should I check before buying a BMW 5-Series?

Look for evidence, not just assurances: MOT advisories, service history, repair invoices, warning lights, fluid leaks, tyre and brake condition, and how the car behaves on a proper test drive. And of course, look at your personalised Should I Buy This Car? report, outlining a full list of common issues in detail, a personalised road test, a plain-English explanation and a MotorIQ score.

A model guide is useful. A report on its registration is better.

The guide above gives you the model-level pattern. A personalised MotorIQ report checks the registration-specific record and turns it into an ownership view before you commit.

Or enter the vehicle manually