Tyre Pressures after removing runflats E93 330i

[c4sman]

Hi all, Need some advice. Recently swapped out Bridgestone runflats to Michelin PS4 non runflats and read that I may need to change tyre pressures. Car is an E93 330i and feels 10x better on standard pressures but I want to make sure they are properly adjusted.

Thanks in advance.

[c4sman]

Sorry, good point. It’s an E93 MSport on 18s (225 Front and 245 Rear). thanks!

[c4sman]

Prinny said:

245 isn’t a standard size on the e9x afaik - should be 255 I think. (But 10mm isn’t enough to worry about until you come to replace, so I wouldn’t sweat that).

Sorry, yet another senior moment from me. Yes they are the standard 255s on the rear as you say. I’m tempted from the mixed view to stay standard pressures and monitor wear. Handling wise the car is transformed after the switch (and is on standard pressures). It used to feel like it had no suspension over bumps, now it’s much more compliant and comfortable but with more accuracy and confidence when pushing on, which is the perfect blend. Also it used to sniff out every camber or road scar and wander around at the front end meaning the drive was never completely relaxed. Now it’s as if they are not there and it goes where you point it. Wish I’d done it sooner as I’ve had the car 18 months. Was thinking of trading for an M3 sometime soon but gonna hang on to enjoy this as a cruiser a little longer.

[c4sman]

tgr said:

Are you having any problems with the N53 engine? Plenty of people seem to, judging from postings on here.

Leaky injectors that need replacing at £1200 a set seem to be a key weakness

Early days for my ownership (18 months) but my car is on 63k miles (bought with 54k mile) with a full BMW and now Munich Legends service history so i dont know about previous problems, but it runs beautifully at the moment. I always treat it to V Power, unless really inconvenient and reading previous post i will try even harder!