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Default Leaving 335i lifted for the Winter months, best practice - 11-12-2018, 10:45 AM

Hi friends,

I'm familiar with where to jack our car from, as well as where to put the stands.
... that is, for temporary lifting anyways. (hours/days)

In reading on-line, I see some suggest not to leave the suspension dangling over the winter, while others suggest it's healthy for the car.

I imagine the truth is in the suspension type, weight of the vehicle and how strong the jack points are (for effectively indefinite suspension).

Perhaps it's better if I remove the wheels, so there is less weight pulling down?

So, what's my best option in this scenario?
Leave it lifted from the side jack points (on stands) or from some suspension piece?




2008 335i Convertible, E93, N54, A/T (200,000+ km)
Wheels: 322 | Tires: R.275/35r18, F.245/40r18
TUNE: JB4/Trebila | 24 PSI | 100% Meth via dual CM5 | 94 Octane
BMS: JB4, Map 6 | WMI | 5" FMIC | OCC | DCI | Cowel Filters
RB: Inlets | PCV Valve
VRSF: DiPis | CP
HKS BOV
xHP Stage 3
NGK-97506 @ .020

Maintenance:
2018 - A/T Replaced | Ign Coils | Walnut Blast
2019 - Index 12 Injectors | VCG | OFHG & O-rings | TStat
2020 - OPG | Battery | IBS | Water Pump | Plugs | Alternator
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LessIsMore LessIsMore is offline
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Default 11-12-2018, 12:16 PM

I think any jack point would be fine to store the vehicle. Seems to be having the suspension compressed would be better, but not heard of anything specific about damage from dangling suspension for long periods.

Is the lifting to avoid flat spots in the tires? You could over-inflate them to 44 psi or so to counteract that without lifting.


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Default 11-12-2018, 12:23 PM

Quote:
Originally Posted by LessIsMore
I think any jack point would be fine to store the vehicle. Seems to be having the suspension compressed would be better, but not heard of anything specific about damage from dangling suspension for long periods.

Is the lifting to avoid flat spots in the tires? You could over-inflate them to 44 psi or so to counteract that without lifting.

Thank you sir.
I'd be working on it over the winter.
Valve cover gasket, oil filter gasket.
In reflection, I think that would all be easier not lifted.
WMI install, pulley and belt replacement.

Possible FMIC and DeePee.




2008 335i Convertible, E93, N54, A/T (200,000+ km)
Wheels: 322 | Tires: R.275/35r18, F.245/40r18
TUNE: JB4/Trebila | 24 PSI | 100% Meth via dual CM5 | 94 Octane
BMS: JB4, Map 6 | WMI | 5" FMIC | OCC | DCI | Cowel Filters
RB: Inlets | PCV Valve
VRSF: DiPis | CP
HKS BOV
xHP Stage 3
NGK-97506 @ .020

Maintenance:
2018 - A/T Replaced | Ign Coils | Walnut Blast
2019 - Index 12 Injectors | VCG | OFHG & O-rings | TStat
2020 - OPG | Battery | IBS | Water Pump | Plugs | Alternator
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rcpro88 rcpro88 is offline
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Default 11-12-2018, 04:22 PM

Leaving it on jack stands for 2-3 months won't have any negative residual effects. Trust me, I left my car on jack stands of over a month while swapping out the cars turbos/oil pan gasket as I was taking my time with the car/had another to use. However I did have my front subframe and suspension pulled for most of the time, I don't see any reason it would cause problems.


DON'T buy VRSF D.Ps or inlets! FBO, E85 Walbro 450, xHP trans flash
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JuniorB JuniorB is offline
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Default 11-13-2018, 03:37 AM

The short layup on suspension is pretty minimal, the real concern are brake components. The bare metal exposed will rust, and the pressure left from the calipers can create warped rotors, mind you this is the cons of being exposed outside in the elements. Any tire sitting for a period will produce a slight flat spot, only because it's under weight,,and once the rubber heats up, will of course run itself round again. The worst thing for any vehicle is to just park it without and preventive measures. There are other thinks to consider besides suspension with any kind of layup, and wether or not it's outside, in, or heated.
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Default 11-13-2018, 10:11 AM

Quote:
Originally Posted by JuniorB
The short layup on suspension is pretty minimal, the real concern are brake components. The bare metal exposed will rust, and the pressure left from the calipers can create warped rotors, mind you this is the cons of being exposed outside in the elements. Any tire sitting for a period will produce a slight flat spot, only because it's under weight,,and once the rubber heats up, will of course run itself round again. The worst thing for any vehicle is to just park it without and preventive measures. There are other thinks to consider besides suspension with any kind of layup, and wether or not it's outside, in, or heated.

Thanks for that JuniorB.

You're the first I've heard mention brakes, but I agree, they glaze-rust pretty quick. I may actually oil my rotors with a cloth.

I'm parking it in my unheated garage.

I did a few googles for good practices. The hanging of the suspension was the largest debate.

Full tank, premium w/ gas line antifreeze run though. (prevent condensation)
Plugging the exhaust with steel wool.
Fresh oil change.
Trickle charger
Good wash and wax to the paint.




2008 335i Convertible, E93, N54, A/T (200,000+ km)
Wheels: 322 | Tires: R.275/35r18, F.245/40r18
TUNE: JB4/Trebila | 24 PSI | 100% Meth via dual CM5 | 94 Octane
BMS: JB4, Map 6 | WMI | 5" FMIC | OCC | DCI | Cowel Filters
RB: Inlets | PCV Valve
VRSF: DiPis | CP
HKS BOV
xHP Stage 3
NGK-97506 @ .020

Maintenance:
2018 - A/T Replaced | Ign Coils | Walnut Blast
2019 - Index 12 Injectors | VCG | OFHG & O-rings | TStat
2020 - OPG | Battery | IBS | Water Pump | Plugs | Alternator
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rcpro88 rcpro88 is offline
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Default 11-14-2018, 09:39 AM

Warping rotors from leaving the car suspended? Thats car from correct, you don't risk warping the rotors, even if you leave the parking brake on, there is no way you car warp the rotors...thats just insane..

I would not recommend to put any oil on your rotors, you will notice they form surface rust if it rains and the car is parked, its nothing to worry about, the surface rust formed on the rotors in the 2-3 month period the car is suspended isn't going to be anything to worry about. I would advise against oiling the rotors as you dont want to get any of the oil on your brake pads...If you're that concerned about your car, spend the money and put it in a heated garage.


DON'T buy VRSF D.Ps or inlets! FBO, E85 Walbro 450, xHP trans flash
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rcpro88 rcpro88 is offline
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Default 11-14-2018, 09:41 AM

What would plugging the exhaust with steel wool do? You do know that it won't create an airtight barrier...I don't see any point in doing that...dont listen to everyone on the internet, especially those who don't have any or much credibility.


DON'T buy VRSF D.Ps or inlets! FBO, E85 Walbro 450, xHP trans flash
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Default 11-14-2018, 10:32 AM

Quote:
Originally Posted by rcpro88
What would plugging the exhaust with steel wool do? You do know that it won't create an airtight barrier...I don't see any point in doing that...dont listen to everyone on the internet, especially those who don't have any or much credibility.

Thanks for the feedback.

The steel wool is more about blocking mice from making homes in the exhaust.
Some also suggest 'Bounce' sheets in certain areas, as apparently they do not care for the cent. I




2008 335i Convertible, E93, N54, A/T (200,000+ km)
Wheels: 322 | Tires: R.275/35r18, F.245/40r18
TUNE: JB4/Trebila | 24 PSI | 100% Meth via dual CM5 | 94 Octane
BMS: JB4, Map 6 | WMI | 5" FMIC | OCC | DCI | Cowel Filters
RB: Inlets | PCV Valve
VRSF: DiPis | CP
HKS BOV
xHP Stage 3
NGK-97506 @ .020

Maintenance:
2018 - A/T Replaced | Ign Coils | Walnut Blast
2019 - Index 12 Injectors | VCG | OFHG & O-rings | TStat
2020 - OPG | Battery | IBS | Water Pump | Plugs | Alternator
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rcpro88 rcpro88 is offline
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Default 11-14-2018, 08:10 PM

I didn't even worry about mice or things with my car, I think it would be rather hard for a mouse to try to climb into the exhaust pipe/ why would they want to make a home there? I had my car in a garage which was clean so I guess if you have your car in a barn somewhere then it would have a higher possibility of a rodent making a home in it...


DON'T buy VRSF D.Ps or inlets! FBO, E85 Walbro 450, xHP trans flash
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Default 11-15-2018, 10:30 AM

Quote:
Originally Posted by rcpro88
I didn't even worry about mice or things with my car, I think it would be rather hard for a mouse to try to climb into the exhaust pipe/ why would they want to make a home there? I had my car in a garage which was clean so I guess if you have your car in a barn somewhere then it would have a higher possibility of a rodent making a home in it...

The local mice likely think it's a barn, but for me, it's a 50 year old, unheated, detached, brick man cave that smells like oil and gas (just enough)!

I guess some on-line have had mice issues, so they go pretty far.
I imagine if I were a mouse, I'd think those ***** would look like a pretty sweet home.

I guess I shouldn't admit that 20 years ago, one made a home briefly in my '85 325e glove box. And it was driven daily.




2008 335i Convertible, E93, N54, A/T (200,000+ km)
Wheels: 322 | Tires: R.275/35r18, F.245/40r18
TUNE: JB4/Trebila | 24 PSI | 100% Meth via dual CM5 | 94 Octane
BMS: JB4, Map 6 | WMI | 5" FMIC | OCC | DCI | Cowel Filters
RB: Inlets | PCV Valve
VRSF: DiPis | CP
HKS BOV
xHP Stage 3
NGK-97506 @ .020

Maintenance:
2018 - A/T Replaced | Ign Coils | Walnut Blast
2019 - Index 12 Injectors | VCG | OFHG & O-rings | TStat
2020 - OPG | Battery | IBS | Water Pump | Plugs | Alternator
Reply With Quote
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mojo20032004 mojo20032004 is offline
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Default 11-15-2018, 09:04 PM

I've been leaving mine in a underground non heated garage for 3-4 months over the winter. Only thing I do is remove negative battery terminal since I dont have a outlet near by to use a trickle charger. Battery usually dies after about a month of sitting if not disconnected


2007 e90 335i
Hexon turbos
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BeatupVR4 BeatupVR4 is offline
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Default 11-16-2018, 05:08 AM

Quote:
Originally Posted by rcpro88
Warping rotors from leaving the car suspended? Thats car from correct, you don't risk warping the rotors, even if you leave the parking brake on, there is no way you car warp the rotors...thats just insane..

I would not recommend to put any oil on your rotors, you will notice they form surface rust if it rains and the car is parked, its nothing to worry about, the surface rust formed on the rotors in the 2-3 month period the car is suspended isn't going to be anything to worry about. I would advise against oiling the rotors as you dont want to get any of the oil on your brake pads...If you're that concerned about your car, spend the money and put it in a heated garage.
You are semi right. A rotor wouldn't "warp" from having the suspension hanging. But it WILL "warp" from the pad sitting in the same position on the rotor for a long period of time causing a build up of material and the thickness variation will give you a pulsing pedal.

A good read for people who actually want to know what they are talking about

http://www.stoptech.com/technical-su...nd-other-myths
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