Engine rev issue

jackaleyess · 10-20-2019, 11:26 AM

Hi, I am currently driving a 2019 530i. Just today i was abit playful, so after started my car i went on to rev the engine till 7k rpm.

Right after i released the pedal, the needle reaches at 3k rpm and continue to rise up to 4k rpm even tho I wasnt my accelerator.
( was freaked out obviously )

The rev counter will increase rev by itself that I have to shut the engine down. Waited awhile and restart and everything back to normal.

Just wondering are any of you guys experienced it before? Will it spoil the engine instantly?

clee1982 · 10-20-2019, 03:53 PM

you cold start and rev to 7k with no load right away?

hlothery · 10-20-2019, 04:54 PM

What?

jackaleyess · 10-20-2019, 07:15 PM

Quote:

Originally Posted by clee1982

you cold start and rev to 7k with no load right away?

Yes but just for a short while until it happened..

CoolWave911 · 10-20-2019, 11:02 PM

Quote:

Originally Posted by jackaleyess

Yes but just for a short while until it happened..

My guess would be the engine is trying to speed up the warm up in anticipation for a quick start or the ECU is trying to burn off all the excess fuel from the lean mixture of a cold start and the redline rev you did put even more fuel into it. Just my guess but who knows what happened. Better not doing that again.

I start my car and drive off right away every morning but I don't step on it so much.

jackaleyess · 10-20-2019, 11:07 PM

Quote:

Originally Posted by CoolWave911

Quote:

Originally Posted by jackaleyess

Yes but just for a short while until it happened..

My guess would be the engine is trying to speed up the warm up in anticipation for a quick start or the ECU is trying to burn off all the excess fuel from the lean mixture of a cold start and the redline rev you did put even more fuel into it. Just my guess but who knows what happened. Better not doing that again.

I start my car and drive off right away every morning but I don't step on it so much.

Yeah, im not so sure what had happened. I immediately turned off the engine. Sounds normal without any pop and crack in the engine tho...

Rested a while and restart. Everything was fine. Tried once more revved up till 6k rpm and the needle rested back to 1k rpm.

Definitely wont do that again unless engine is heated up and driving on the road.

Thanks for the info mate. Cheers.

clee1982 · 10-21-2019, 09:31 AM

why would you want to rev to 6k without load again...?

Warp Ten · 10-21-2019, 09:35 AM

Back in the early 90s, the Corvette ZR-1 was experiencing a series of engine failures right off the assembly line. Turns out a factory worker was getting into the car at the end of the assembly line and immediately revved the 375 HP DOHC engine to redline to drive off the line. Cams failed due to lack of lubrication on initial start up. Once the worker was removed there was never another engine failure. You should never rev an unloaded engine to redline and absolutely never on initial start up. There is insufficient lubrication to critical engine parts. --Bob

jackaleyess · 10-21-2019, 09:38 AM

Quote:

Originally Posted by Warp Ten

Back in the early 90s, the Corvette ZR-1 was experiencing a series of engine failures right off the assembly line. Turns out a factory worker was getting into the car at the end of the assembly line and immediately revved the 375 HP DOHC engine to redline to drive off the line. Cams failed due to lack of lubrication on initial start up. Once the worker was removed there was never another engine failure. Don't ever rev an unloaded engine to redline and absolutely never on initial start up. There is insufficient lubrication to critical engine parts. --Bob

Got it Bob. Aint goina do that anymore esp at initial start up otherwise engine fucked up and there goes my USD88k.

Not cheap to own car in my part of the world. Phew...

FoxberryJam · 10-22-2019, 12:32 PM

there are less costly ways to be playful...

NHM550 · 10-22-2019, 05:03 PM

Quote:

Originally Posted by jackaleyess

Quote:

Originally Posted by Warp Ten

Back in the early 90s, the Corvette ZR-1 was experiencing a series of engine failures right off the assembly line. Turns out a factory worker was getting into the car at the end of the assembly line and immediately revved the 375 HP DOHC engine to redline to drive off the line. Cams failed due to lack of lubrication on initial start up. Once the worker was removed there was never another engine failure. Don't ever rev an unloaded engine to redline and absolutely never on initial start up. There is insufficient lubrication to critical engine parts. --Bob

Got it Bob. Aint goina do that anymore esp at initial start up otherwise engine fucked up and there goes my USD88k.

Not cheap to own car in my part of the world. Phew...

Unrelated... you paid 88k for a 530?!

LogicalApex · 10-22-2019, 06:07 PM

Quote:

Originally Posted by NHM550

Unrelated... you paid 88k for a 530?!

OP is not in the US and cars can cost a lot more in other parts of the world with taxation playing a major role. For instance, in another thread a user from Denmark noted they paid $174K USD for a 540i as taxation on cars in Denmark is 150%.

Taxation in the US is generally a lot lower and we don't have emissions based taxation and etc. So you can't do a straight line cost comparison between countries.

https://g30.bimmerpost.com/forums/sh...9#post25108149

jackaleyess · 10-23-2019, 03:26 AM

Quote:

Originally Posted by NHM550

Quote:

Originally Posted by jackaleyess

Quote:

Originally Posted by Warp Ten

Back in the early 90s, the Corvette ZR-1 was experiencing a series of engine failures right off the assembly line. Turns out a factory worker was getting into the car at the end of the assembly line and immediately revved the 375 HP DOHC engine to redline to drive off the line. Cams failed due to lack of lubrication on initial start up. Once the worker was removed there was never another engine failure. Don't ever rev an unloaded engine to redline and absolutely never on initial start up. There is insufficient lubrication to critical engine parts. --Bob

Got it Bob. Aint goina do that anymore esp at initial start up otherwise engine fucked up and there goes my USD88k.

Not cheap to own car in my part of the world. Phew...

Unrelated... you paid 88k for a 530?!

Yes my friend and to us its alrdy very reasonable and affordable. 530i outsold 520i in Malaysia.

Our tax is around 100% so yeah... but with high price also comes with a somewhat high spec as compared to most of other countries such as Eu.

Tats y we BMW dont even bother bringing in 540i and M550i as the price will be even crazier plus hefty roadtax. So if you want higher-power and a V8. BMW Malaysia know you are loaded, and you would go directly to M5. Which is around USD250k.

10-20-2019, 11:26 AM	#1
jackaleyess Lieutenant 194 Rep 556 Posts Drives: 2011 528i M-sport (sold), 2018 Join Date: Dec 2011 Location: Kuala Lumpur iTrader: (0) Garage List 2022 BMW X5 45e [0.00] 2016 Infiniti Q50 [0.00] 2018 Porsche 911 Ca ... [0.00]	Engine rev issue Hi, I am currently driving a 2019 530i. Just today i was abit playful, so after started my car i went on to rev the engine till 7k rpm. Right after i released the pedal, the needle reaches at 3k rpm and continue to rise up to 4k rpm even tho I wasnt my accelerator. ( was freaked out obviously ) The rev counter will increase rev by itself that I have to shut the engine down. Waited awhile and restart and everything back to normal. Just wondering are any of you guys experienced it before? Will it spoil the engine instantly? __________________ ????
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10-20-2019, 03:53 PM	#2
clee1982 Lieutenant Colonel 798 Rep 1,736 Posts Drives: 2019 BMW 540i xDrive Join Date: Nov 2018 Location: NYC iTrader: (0) Garage List 2019 BMW 540i xDrive [0.00]	you cold start and rev to 7k with no load right away?
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10-20-2019, 04:54 PM	#3
hlothery Seeking mental floss 482 Rep 806 Posts Drives: 2022 Mercedes EQS 450+ Join Date: May 2016 Location: San Antonio, Tx iTrader: (0)	What?
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10-21-2019, 09:31 AM	#7
clee1982 Lieutenant Colonel 798 Rep 1,736 Posts Drives: 2019 BMW 540i xDrive Join Date: Nov 2018 Location: NYC iTrader: (0) Garage List 2019 BMW 540i xDrive [0.00]	why would you want to rev to 6k without load again...?
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10-21-2019, 09:35 AM	#8
Warp Ten Captain 642 Rep 626 Posts Drives: 2019 BMW 540xi Join Date: Oct 2018 Location: Lake Bluff IL iTrader: (0)	Back in the early 90s, the Corvette ZR-1 was experiencing a series of engine failures right off the assembly line. Turns out a factory worker was getting into the car at the end of the assembly line and immediately revved the 375 HP DOHC engine to redline to drive off the line. Cams failed due to lack of lubrication on initial start up. Once the worker was removed there was never another engine failure. You should never rev an unloaded engine to redline and absolutely never on initial start up. There is insufficient lubrication to critical engine parts. --Bob __________________ 2019 540xi M Sport, Carbon Black/Cognac, 2014 328xi, 2016 Corvette Z06; Previous:2010 BMW 535xi M Sp, 2008 335xi, 1998 M3 Sedan,1980 528i, 1977 320i, 1976 2002
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10-22-2019, 12:32 PM	#10
FoxberryJam Lieutenant 509 Rep 471 Posts Drives: '23 M4 CompX; '98 m Roadster Join Date: Oct 2019 Location: New Jersey iTrader: (0) Garage List 1998 BMW M Roadster [0.00] 2023 BMW M4 Competi ... [10.00]	there are less costly ways to be playful...
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