Havent started her up in 4 years. To dos?

[gurpgork]

My 2c

Look for any signs of vermin
Battery will be shot unless you had it on a tender.
Check oil level but also quality - does it have any fuel or water in it?
I'd pull the fuel pump fuse and crank it to get some oil flowing - not sure if you can get enough pressure to get the pressure light out though.
Take a look at brake fluid, but it's probably good enough to get going. It should be changed shortly though.
Check coolant level/condition.
Drain as much fuel as possible and dilute with fresh fuel as much as possible - watch for leaks from perished rubber etc. When you've got the fuel pump fuse back in and about to start, I'd let it prime a couple of times and then look for any obvious leaks.

Other than that I'd not bother with too much else after that amount of time to get it started but I'd then go and change the oil and the oil/fuel filters in particular but also other fluids like coolant.

Given it's a car worth putting money into, you may even consider doing the oil change first but if it was new oil before putting it into storage it will be fine to get it running IMO.

For the most part the car is sound. It was converted to a race prepped car in 2012 and saw track service until 2015 (engine rebuild) when limp mode issue side lined it (I'll need to deal with that after).
All fluids were replaced back in 2017 when it was last started and stowed away in my trailer. I have no issues changing out all the fluids again. I was primarily thinking about the startup procedure for a car that handnt been started in a while.

What is the significance of trying to get the Oil light to go out?

Thanks.

[Mr.wReckless]

The cylinder walls will probably be dry, I see some engine rebuilders mist the walls via the spark plug hole so you won't score the cylinders on the initial crank, it wouldn't hurt to do this whilst cranking the engine, IMO by hand initially then with the starter motor. It'll also help with oil pressure and distribution initially so you won't dry start the engine after 4 years sitting.

Regards

[Syfon]

Change the oil and filter again. Remove fuel pump fuse; crank is for a short while to build up oil pressure. Maybe remove the valve cover and visually inspect? My $0.02...

I'm sure others will chime in with their suggestions!

[Shonky]

My 2c

Look for any signs of vermin
Battery will be shot unless you had it on a tender.
Check oil level but also quality - does it have any fuel or water in it?
I'd pull the fuel pump fuse and crank it to get some oil flowing - not sure if you can get enough pressure to get the pressure light out though.
Take a look at brake fluid, but it's probably good enough to get going. It should be changed shortly though.
Check coolant level/condition.
Drain as much fuel as possible and dilute with fresh fuel as much as possible - watch for leaks from perished rubber etc. When you've got the fuel pump fuse back in and about to start, I'd let it prime a couple of times and then look for any obvious leaks.

Other than that I'd not bother with too much else after that amount of time to get it started but I'd then go and change the oil and the oil/fuel filters in particular but also other fluids like coolant.

Given it's a car worth putting money into, you may even consider doing the oil change first but if it was new oil before putting it into storage it will be fine to get it running IMO.

[gurpgork]

I've had my E46 M3 in storage for the last 4 or 5 years. Gas tank is 1/3 full and oil was changed before it went into storage. I want to start her up. I'll drain the old gas and replace with new, but I wanted to get some feedback on whether I should be doing anything else before just turning her over. Thanks in advance.