Find out what’s the correct tyre pressure for your BMW 4 Series

Do you own a BMW 4 Series? We have compiled a list of BMW 4 Series tyre sizes with their relevant tyre pressures.

Sean Nurse

16 Aug 2023 · 09:52Car Ownership1 min read

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Did you find one of the many new or used BMW 4 Series models on AutoTrader and want to sell your car quickly on our Instant Offer tool? After owning it for some time, you will need to re-inflate the tyres but if you are unsure of the correct pressures. Here is a quick guideline to help you.

Please note the information displayed below should be used as a guideline only. Refer to your BMW 4 Series owner's manual for the correct information. Alternatively, check for the informational sticker on the inside of the driver's door or contact your nearest dealer.

Related: What is the difference between a BMW 3 Series and 4 Series?

Effects of incorrect tyre pressure

Under-inflated tyres will cause excess wear and tear on the inside and outside edges of the tread.

Over-inflated tyres have a much narrower contact patch with the road and can lead to poor braking distances and a loss of traction on the road.

That is why it is important to check your tyre pressure often, as this will not only aid in extending the life of your BMW 4 Series tyres but will also affect the vehicle's safety through its handling under different conditions, braking characteristics, comfort and will also affect the vehicle's fuel economy.

Tyre Size + Tyre Pressure

Model	Year	Tyre Size	Pressure Front (bar)	Pressure Rear (bar)
4 Series Cabriolet	14 - 18	225/50R17	2.4	2.7
4 Series Cabriolet	14 - 18	225/40R18	2.4	2.7
4 Series Coupe	13 - 18	225/45R18	2.4	2.4
4 Series Coupe	13 - 18	225/50R17	2.4	2.4
4 Series Gran Turismo	14 - 18	225/50R17	2.0	2.4
4 Series Gran Turismo	14 - 18	225/45R18	2.0	2.6
M4 - 4 Series	14 - 18	275/40R18	2.2	2.2
M4 - 4 Series	14 - 18	255/40R18	2.2	2.2
4 Series Coupe	20-22	225/50 R17	2.4	2.7
4 Series cabriolet	20-22	225/45 R18(front)255/40 R18 (rear)	2.2	2.2
4 Series Gran Coupe	20-22	225/40 R19 (front) 255/35 R19 (rear)	2.2	2.3
4 Series M440i Coupe and cabriolet	20-22	225/45 R18(front) 255/40 R18	2.2	2.2
4 Series M440i Gran Coupe		225/40 R19(front) 255/35 R19 (rear)	2.2	2.3
M4	20-22	275/35 R19(front)285/30 R20	2.2	2.3

Written by Sean Nurse

With a lifelong passion for cars, bikes, and motorsport, Sean knew that attaining a degree in journalism would allow him to pursue his passion, which was to be a motoring journalist. After graduating in 2012, Sean was awarded a bursary from the SAGMJ which allowed him to work for a variety of motoring publications. This was a dream come true for Sean, and after a year of gaining vital industry experience, he was hired as a motoring journalist at a local newspaper and worked his way up to editor. In 2020, Sean joined the AutoTrader team and counts himself lucky to wake up and genuinely love what he does for a living.Read more