F10 M5

[Speenybean]

Thinking of purchases a 2014 m5 with 29k miles and stage 2 tune. Been hearing a lot about staying away from these cars when tuned because they blow up but was wondering if anyone could give me input. Car is equipped with CCB and is in very good condition and maintained very well. Any help would be greatly appreciated. Tuned by RK tunes in NY. Thanks everyone. The seller has been very very transparent with me as well. Great guy.

[M5Rick]

If you want one with a tune go for it, you can also ask him what his procedure was for cold start and running etc.These motors need min 2 minute tick over when cold then kept at low revs until oil temp is hot.
Check the CCB's that they are in good order with no chips at the edges or any flakeiness,should be shining smooth.

[Speenybean]

Originally Posted by M5theonlyone

If you want one with a tune go for it, you can also ask him what his procedure was for cold start and running etc.These motors need min 2 minute tick over when cold then kept at low revs until oil temp is hot.
Check the CCB's that they are in good order with no chips at the edges or any flakeiness,should be shining smooth.

Originally Posted by M5theonlyone

If you want one with a tune go for it, you can also ask him what his procedure was for cold start and running etc.These motors need min 2 minute tick over when cold then kept at low revs until oil temp is hot.
Check the CCB's that they are in good order with no chips at the edges or any flakeiness,should be shining smooth.

Someone said DD with CCB they'll last the life of the car

[Ickdeep]

Originally Posted by Speenybean

Thinking of purchases a 2014 m5 with 29k miles and stage 2 tune. Been hearing a lot about staying away from these cars when tuned because they blow up but was wondering if anyone could give me input. Car is equipped with CCB and is in very good condition and maintained very well. Any help would be greatly appreciated. Tuned by RK tunes in NY. Thanks everyone. The seller has been very very transparent with me as well. Great guy.

Hey, Yes there is a bunch of horror stories about these but you don't hear about all the owners that are very happy with their cars. Most people on here are on some type of tune (mostly stage 2). Most of the owners that have issues are not reasonable owners. IE getting maintenance done on time and correctly & waiting for the engine to warm up before using all the power. If the car has been maintained well, I'd definitely go for it.

[Speenybean]

Originally Posted by Ickdeep

Hey, Yes there is a bunch of horror stories about these but you don't hear about all the owners that are very happy with their cars. Most people on here are on some type of tune (mostly stage 2). Most of the owners that have issues are not reasonable owners. IE getting maintenance done on time and correctly & waiting for the engine to warm up before using all the power. If the car has been maintained well, I'd definitely go for it.

Originally Posted by Ickdeep

Hey, Yes there is a bunch of horror stories about these but you don't hear about all the owners that are very happy with their cars. Most people on here are on some type of tune (mostly stage 2). Most of the owners that have issues are not reasonable owners. IE getting maintenance done on time and correctly & waiting for the engine to warm up before using all the power. If the car has been maintained well, I'd definitely go for it.

For sure man. When I bought my X5 2015 50i I heard the same horror stories. People swore the n63tu was a doomsday but it's been well maintained by myself and no problems thus far

[PoolCar]

Originally Posted by M5theonlyone

If you want one with a tune go for it, you can also ask him what his procedure was for cold start and running etc.These motors need min 2 minute tick over when cold

I'd like to know where you got this nugget from.

[M5Rick]

Originally Posted by PoolCar

I'd like to know where you got this nugget from.

The warm up? It's common knowledge that engine wear happens most on start ups and it's important to warm it up a bit to get the oil circulating without load.
Known a few technicians who have advised this.

[Larry77]

I was always told you needed the oil to be warm because it lubricates the turbos, may not be any truth to it but a mechanic told me once and it stuck with any of my turbo cars. I never hit it until my oil is at running temp. I also honor the cold start, more because it's a pain in the azz to drive it when it's revving, he he.

[texsn95]

How long does it take yours to warm up to near operating temp, just on a normal commute? Even on a warm day it seems like I have to go a good three miles before the needle even moves. I'm not sure which oil is in mine but I'm changing it tomorrow to Castrol Edge 5-50 and will be able to compare.

[Larry77]

Yeah, it takes awhile. My M5 takes a lot longer than my 3-series did. With turbos you also don't want to turn it off right after hitting it. I was taught to make sure the engine is not "stressed" when you turn it off.

[schrickm5]

I think leaving turbo cars to idle was something I was also told with the Alpina B10 biturbo's.... sounds like a sensible idea even now.

[M5Rick]

Originally Posted by texsn95

How long does it take yours to warm up to near operating temp, just on a normal commute? Even on a warm day it seems like I have to go a good three miles before the needle even moves. I'm not sure which oil is in mine but I'm changing it tomorrow to Castrol Edge 5-50 and will be able to compare.

Over here in UK BMW recommends 0W30 f/s oil of which Castrol Edge do this grade.I believe in US it is recommended also, some owners who have had engines replaced under warranty have said this is the grade of oil that BMW NA dealers have put in.

[texsn95]

From doing some research people seem to be running all varieties of brands and weights. As long as you do the proper warmup and use a proper oil change interval (not the 10k like BMW suggests) then the motor should be fine. On my E60 I went 4-5k, or about once a year since I don't put many miles on my vehicles.

Basically, this
https://f10.m5post.com/forums/showpo...90&postcount=5

[SapphireM5]

My M5 sits in a climate controlled garage. She still warms up for at least a good 10min before I go out. Even then it's another few minutes before I get to the open roads. I don't go over 2-3k until I see the oil temp up near normal temps. When I return I always let her sit idling while I unload the car at least 5 min before putting her away. I run Castrol edge 0W40 but the car is stored during winter months.

[Noggie]

when I had my car at BMW I talked to the Tech about tunes.

He said that BMW would allow a wide variety of tunes to the car, however if the tune was outside BMW's parameters a warning message would appear on the diagnostic tool that all warranty and goodwill was voided.

If its a tune from a reputable tuner, you should be safe.
It mostly comes down to how it's been used, as for any car really.

On idling warm-up/ cool down.
I typically drive very gentle until the oil is past 70celcius, rarely pass 2500rpm.
on returning after a spirited drive I let the car idle for a minute or so before shutting it off. this too cool down the turbos, as they have been spinning at 40.000rpm and is very hot so I let them cool down a bit.

[texsn95]

Well I did my first oil change, after a few delays due to not having the right filter wrench (different than the E60s) and getting some jack pads, it went pretty smoothly. The motor starts to warm up much faster, I’d say within a mile now instead of ~3 miles before. Very smooth and seems to rev a bit more freely now (but maybe that’s wishful thinking). Added 9qts and got a level reading of ~70% so onward we go.

[AirBull]

Originally Posted by M5theonlyone

The warm up? It's common knowledge that engine wear happens most on start ups and it's important to warm it up a bit to get the oil circulating without load.
Known a few technicians who have advised this.

My previous vehicle was an LS7 Corvette. I rebuilt the heads and added a slightly higher spec cam in it; (I wish I could have kept it and still got into the M5.) Every time I started the Corvette, I would switch the dash to oil temperature as I would baby it until the oil temps came up. I want to make sure all the critical components are getting adequate lubrication. On the M5, I wait for the needle to start moving before getting on it much more than 2k to 2.5krpm.

Originally Posted by texsn95

How long does it take yours to warm up to near operating temp, just on a normal commute? Even on a warm day it seems like I have to go a good three miles before the needle even moves. I'm not sure which oil is in mine but I'm changing it tomorrow to Castrol Edge 5-50 and will be able to compare.

If you were going to go to a 5w-50 viscosity, Troy Jeup swears by Red Line 5w50; it has an HTHS of like 5.0. Personally, I'm sticking to the Ravenol VST 5w-40 with like a 3.8 HTHS, but that's a helluva lot better than the BMW 0w-30 and it's 2.9 HTHS, (LL-01 FE.)

Originally Posted by texsn95

Well I did my first oil change, after a few delays due to not having the right filter wrench (different than the E60s) and getting some jack pads, it went pretty smoothly. The motor starts to warm up much faster, I’d say within a mile now instead of ~3 miles before. Very smooth and seems to rev a bit more freely now (but maybe that’s wishful thinking). Added 9qts and got a level reading of ~70% so onward we go.

When I got my M5, I didn't keep the recently changed BMW oil (assume 0w-30) very long before I swapped it out for Ravenol VST 5w-40, but it does take a while before that oil temperature gauge needle begins to move. I don't get on it until it starts to move. (Hell, let's be honest, I don't get on it very much even at that. Plenty of power for the street.)