Modified '13 m5 Suspected Motor Knock VIDEO

[Bimmer6]

Interesting outcome, this is one reason I never tune cars because they're still street cars made for normal DD driving. M cars will never be reliable for hard driving, or track driving. Too many consumable parts will fail, and the upkeep will be very expensive.

[apexlocator]

Thanks for the candid posts OP. I myself had broached the idea of water injection via Aquamist with my SA; he quietly shook his head lol.

[bgboost]

Glad I didn't buy mine from CARMAX!

[f10eugene]

Originally Posted by bgboost

Glad I didn't buy mine from CARMAX!

No way they woud sell the car like this. My guess is that they will either fix it or send it to auction.

[f10eugene]

UPDATE: Carmax ended up auctioning the vehicle as is - a local dealership purchased it last summer and has been trying to sell it ever since. They even took it to my friend's BMW dealership where the techs confirmed that motor needed to be replaced. All I can say is GLWS...

Originally Posted by f10eugene

No way they woud sell the car like this. My guess is that they will either fix it or send it to auction.

[Yay-Z]

Originally Posted by PetrolFumes

OP sorry for your pain. This sucks but you made out ok. I'm actually happy to see this is the first time a post like this has been out here. coming from an E92 there were dozens of rod bearing failures and knock videos. glad to see this engine is much stronger overall with less incidence

Yeah, E90 M3s were bad. Had me paranoid all while i owned it

[AWF10M5]

Where is it being sold?

[f10eugene]

Chicago Auto Place but it looks like it has been removed from their inventory list.

Originally Posted by AWF10M5

Where is it being sold?

[sly1types]

From that video it sounded like the the knock went away when you rev it up. It might just be a bad injector.

[finlandm5f10]

This is exhaust leak. I think it is downpipe gasget.

[robo925]

Did your black on black with black rims have the M color stripe grill w/ blue brakes??? If, so PM me.

[BinH]

Originally Posted by sly1types

From that video it sounded like the the knock went away when you rev it up. It might just be a bad injector.

I think you're correct. Had a similar noise from mine pre tune and it was an injector.

[kingsolo711]

You cannot hide a flash tune, they can even see how many times it was flashed.

[M5Rick]

Zanderza had same noise,go into his post he has a part number.

[finlandm5f10]

Originally Posted by kingsolo711

You cannot hide a flash tune, they can even see how many times it was flashed.

This is bull.... Yes you can hide if you have tools whit that.

[bongek]

Hi Eugene

can i now the cause and how u rectify 'm5 f10 engine knock' posted 20/6/2017?

Thanks

[J11SEK]

What a heartbreaking noise that is! as we all listen for knocks/clicks/hisses/whines etc etc without ever actually wanting to hear them! that must of been a terrible 150mile journey home you did....
Glad you managed to offload it

[twistedf80m3]

dont think thats a engine knock tbh surprising nobody from carmax, to the local dealer to the bmw dealer figured that out

sounds like a injector or a exhaust leak

[///M_life]

When i first bought my ///M it had a rod knock and got it replaced at 64-65k and it was stage 2 tuned. Since being replaced i have downgraded and stayed with the simple BMS Stage 1 tune on 3.0 setting over stock boost. That is really about as far as you can push it. BMS is probably the weakest of all stage 1 tunes as its a cheap basic piggyback tune. Bootmod stage 1, ESS or any other stage 1 tune is going to pull more power then the BMS stage 1. A few things to help avoid rod bearing failure..

1. Let Vehicle warm up 2-3 minutes before driving it.

2. Let the oil temp gauge get to the first dot before taking it over 3,000 RPM

3. Use consistent Oil. Try not to change brands/viscosity

4. Let the car cool down at idle after being driven hard

5. Dont beat the shi* out of the car. As clearly stated, the M5 cannot be driven extremely hard as compared to other performance cars. You buy and M5 for a reason so it really makes no sense to buy it and be too scared to get on it. Just be sensible and limit the tuning and upgrades. Anytime you launch the car just realize you are shortening the life span of parts dramatically. Be smart if you dont want the big bill in the end

*Any conclusion to of the OP video was a rod knock?