[dimab0]

Originally Posted by Ximian

I'll need to look into blocking off the radiators somehow.

Sounds extreme

[SwankPeRFection]

Originally Posted by aremmell

I found that my brand new (<1K miles) M4 seems to have a stuck or frozen parking brake when first transitioning from stationary to moving backward out of the garage, even after warm-up. I can feel tension build up, and it makes a slight pop sound and then I'm good to go.

Otherwise it's been totally fine in the cold.

That happens when you clamp down the pad onto the rotor when it’s wet. It sits overnight and develops surface rust which locks it in place and when you move, it’s pops it off. If you’re in snow or other wet conditions (even washing the car) you will probably experience this. In some cases, if you back out a little and then stop and go check the back rotor, you will see the pad outline on the disc itself.

[aremmell]

Originally Posted by SwankPeRFection

That happens when you clamp down the pad onto the rotor when it’s wet. It sits overnight and develops surface rust which locks it in place and when you move, it’s pops it off. If you’re in snow or other wet conditions (even washing the car) you will probably experience this. In some cases, if you back out a little and then stop and go check the back rotor, you will see the pad outline on the disc itself.

Huh. It has been really dry lately though, and the car was in the garage 100% of the time... Not that I don't believe you. I'll look next time.

[SwankPeRFection]

Originally Posted by aremmell

Huh. It has been really dry lately though, and the car was in the garage 100% of the time... Not that I don't believe you. I'll look next time.

Then you shouldn’t feel what you’re feeling unless it’s hill hold or something along those lines disengaging. There “could” be a safety layer where the can doesn’t actually disengage the parking brake you release it until you actually try to move in gear, but that would be the only reason you’d still feel the brake is still engaged. Along as you hear the PB servo back off when you release it, the screw within the piston has released the clamping force of the rear caliper. Maybe listen for it next time you get in.

[SheBMW]

Originally Posted by aremmell

I found that my brand new (<1K miles) M4 seems to have a stuck or frozen parking brake when first transitioning from stationary to moving backward out of the garage, even after warm-up. I can feel tension build up, and it makes a slight pop sound and then I'm good to go.

Otherwise it's been totally fine in the cold.

I have the same thing with my M4 (750miles give or take).

I don't drive it in the rain because I still have the Pirelli's on the car, and she is garaged. Auto Hold is not on so I figured it's just one of the quirks of an M car.

[ztx84]

We have some reasonably cold weather in the UK right now and for the most part mine is garaged so its never iced up. But when its been left for a few days in this weather I've noticed it is a bit more jerky when I set off, and its obvious all the fluids are cold. Its the same with every car I've had really but with the M4 I notice it a bit more. Heater warms up quick though so after a few minutes all is good. I just drive really conservatively with low RPM for the first few milles.

[aremmell]

Originally Posted by SheBMW

I have the same thing with my M4 (750miles give or take).

I don't drive it in the rain because I still have the Pirelli's on the car, and she is garaged. Auto Hold is not on so I figured it's just one of the quirks of an M car.

Ditto, but rain=snow in Idaho, so it's worse . I still haven't figured out how some people get Michelins and some Pirellis. Must be an option, but I don't know which one is the standard and which one is the option.

Most extremely high end cars I see lately are running Michelin pilot cup 2/4s...

[nordmanmg]

Perfectly fine

[SheBMW]

Originally Posted by aremmell

I still haven't figured out how some people get Michelins and some Pirellis. Must be an option, but I don't know which one is the standard and which one is the option.

It seems to be pretty random by my count, but what do I know?

[dimab0]

I convinced the dealer to change the rear differential fluid. So far I think that has resolved all of my clunking noises. The car has about 30k miles on it.

[echtors]

Went on multiple ski trips in -30C, car was perfect

[GrannyShiftG80]

other than waiting a full 30 minutes for oil to warm up, it's great

[Forzanerazzurri]

It's superb

[Reprosal]

I start it in my heated garage, 55F, wait 10 seconds, reverse and go.

I dont rev higher than 3k until we have driven a bit but I don’t let it sit for minutes to warm up.

Also - handled the insane blizzard in SE Sask like a champ.

[davidmct-M3]

[QUOTE=SheBMW;30824706]I have the same thing with my M4 (750miles give or take).

I don't drive it in the rain because I still have the Pirelli's on the car, and she is garaged. Auto Hold is not on so I figured it's just one of the quirks of an M car.

Pirellis are fine in the rain. Drive all the time in uk in the rain. Only thing you need to watch on pzero and ps4 is lower aquaplaning speed of high performance tyres.

[BEAR-AvHistory-2]

Three winters in for 2022, delivered Thanksgiving weekend 2021, and no weather related issues. In fact no issues at all.