245/40 R18, what to know before fitting
Many 5 Series and E-Class trims are run-flat from new. Decide early whether you want to keep them or convert, we'll explain pros and cons before fitting.
Cars commonly fitted with 245/40 R18
Sizing varies by trim, year and wheel package, so always confirm from the sidewall, fuel-flap, or door-frame placard. Models we often fit on this size include:
- BMW 5 Series
- Audi A6/S6
- Mercedes E-Class
- Jaguar XF
Choosing the right 245/40 R18 tyre
We carry three clear tiers across the 245/40 R18 range so you can match tyres to how you actually drive:
- Premium. Michelin, Continental, Pirelli, Bridgestone, Goodyear. Best wet braking, longer life, lower noise. Strong choice for high-mileage, motorway-heavy or premium cars.
- Mid-range. Hankook, Toyo, Falken, Yokohama, Dunlop. Excellent value with reliable wet performance. Suits most family hatchbacks and SUVs.
- Budget. Landsail, Davanti, Triangle, Westlake, Roadx, Linglong. Fully road-legal, best for low-mileage city use or older cars.
Approximate dimensions
A 245/40 R18 tyre has a section width of about 245 mm, a sidewall height of roughly 98 mm, and an overall outside diameter near 653 mm. Always cross-check against your vehicle’s approved fitments before changing brands or rim sizes.
