Some BMW 5 Series models are supplied with run-flat tyres as standard, but it depends on the year and trim. Check the sidewall marking (often RSC or Runflat) and your vehicle handbook. If you switch to non run-flat tyres, make sure you have a puncture repair kit or spare solution and avoid mixing run-flat and non run-flat on the same axle.
You can confirm the tyre size on the current tyre sidewall (for example 245/45 R18), on the driver door jamb sticker, or in the handbook. Many 5 Series setups use staggered sizes, so the front and rear may differ. Use the registration search for the most accurate match, or enter the exact size manually.
It is generally best to keep the same tyre model across each axle for consistent handling and braking, especially on a BMW 5 Series. Mixing brands or tread patterns can affect ride, grip and noise. For xDrive models, keeping rolling circumference closely matched is particularly important, so replace tyres in axle pairs and follow the recommended specifications.
Fitting typically includes removing the old tyres, fitting the new tyres, balancing, and safe disposal of the old casings. Some garages may charge extra for TPMS valve servicing, new valves, or alignment checks. During checkout, you can choose a local garage and time slot that works for you.
UK law requires a minimum tread depth of 1.6 mm across the central three-quarters of the tyre, but many drivers replace earlier for better wet braking. Replace tyres if you see uneven wear, sidewall damage, persistent vibration, or regular loss of pressure. If you cover high motorway mileage, consider tyres with strong wet-grip ratings and good longevity for your 5 Series.