BMW M5 Forum

Post Reply
 
Thread Tools Search this Thread
      11-16-2024, 07:54 AM   #1
bmwm850
Registered
0
Rep
3
Posts

Drives: 2020 BMW M850i
Join Date: Nov 2024
Location: Wisconsin

iTrader: (0)

BMW Not starting (please help)

Hello everybody I have a 2020 bmw m850 and I went outside to start it this morning and it sounds like it wants to start but it’s not cranking and I got these codes… I’m guessing I need to replace the starter??? Anybody have these issues before or any other suggestions I should try first before buying a new starter???
Appreciate 0
      11-16-2024, 10:25 AM   #2
RockCrusher
Lieutenant Colonel
United_States
1691
Rep
1,598
Posts

Drives: BMW 2024 M8 Competition Coupe
Join Date: Jun 2022
Location: Benton County, AR

iTrader: (0)

Quote:
Originally Posted by bmwm850 View Post
Hello everybody I have a 2020 bmw m850 and I went outside to start it this morning and it sounds like it wants to start but it’s not cranking and I got these codes… I’m guessing I need to replace the starter??? Anybody have these issues before or any other suggestions I should try first before buying a new starter???
Sounds like it wants to start but it's not cranking? What sounds does the engine (car) make then?

And what codes did you get?

If the car's electronics come alive in a normal fashion but the engine does not crank that can be due to several things: A low battery/faulty battery cables/connections; faulty ignition switch; transmission sensor bad -- the engine controller doesn't know the transmission is in P (or N); bad starter solenoid; bad brake switch (the engine controller doesn't recognize the brake is applied); or in the case of a manual equipped car the clutch pedal interlock switch is bad; the keyfob RFID is faulty.

If there is a click when you try to start the engine that can be low battery/bad cabling/connections; bad starter solenoid switch or the solenoid works and moves the starter pinion gear into mesh with the ring gear but the switch that should then be closed to cause the starter to crank doesn't work.

If everything appears normal but the engine cranks and doesn't fire that is often due to a bad fuel pump. Too often -- and I'm guilty of this -- one doesn't really pay attention to what if any sound the fuel pump makes when things work right and thus may not realize the fuel pump is quiet. Also some cars have fuel pumps one can hear while other cars the fuel pump is quieter.
Appreciate 1
      11-16-2024, 10:32 AM   #3
bmwm850
Registered
0
Rep
3
Posts

Drives: 2020 BMW M850i
Join Date: Nov 2024
Location: Wisconsin

iTrader: (0)

Quote:
Originally Posted by RockCrusher View Post
Sounds like it wants to start but it's not cranking? What sounds does the engine (car) make then?

And what codes did you get?

If the car's electronics come alive in a normal fashion but the engine does not crank that can be due to several things: A low battery/faulty battery cables/connections; faulty ignition switch; transmission sensor bad — the engine controller doesn't know the transmission is in P (or N); bad starter solenoid; bad brake switch (the engine controller doesn't recognize the brake is applied); or in the case of a manual equipped car the clutch pedal interlock switch is bad; the keyfob RFID is faulty.

If there is a click when you try to start the engine that can be low battery/bad cabling/connections; bad starter solenoid switch or the solenoid works and moves the starter pinion gear into mesh with the ring gear but the switch that should then be closed to cause the starter to crank doesn't work.

If everything appears normal but the engine cranks and doesn't fire that is often due to a bad fuel pump. Too often — and I'm guilty of this — one doesn't really pay attention to what if any sound the fuel pump makes when things work right and thus may not realize the fuel pump is quiet. Also some cars have fuel pumps one can hear while other cars the fuel pump is quieter.
It honestly sounds almost like a grinding noise and won’t crank up I got the codes 216119 “pinion starter : line break starter control (KL50/KL30)”
21B100 “Pinion starter, CC repeat start attempt message activated
24000B “timeout data EWS”
I actually got the car to start after multiple attempts of starting… I took it for a drive it felt like it drove normal it ran good didn’t cut off at all when I got home I shut it up and tried to start back up and it started doing the same thing A very loud grinding noise almost
Appreciate 0
      11-16-2024, 10:50 AM   #4
RockCrusher
Lieutenant Colonel
United_States
1691
Rep
1,598
Posts

Drives: BMW 2024 M8 Competition Coupe
Join Date: Jun 2022
Location: Benton County, AR

iTrader: (0)

Quote:
Originally Posted by bmwm850 View Post
It honestly sounds almost like a grinding noise and won’t crank up I got the codes 216119 “pinion starter : line break starter control (KL50/KL30)”
21B100 “Pinion starter, CC repeat start attempt message activated
24000B “timeout data EWS”
I actually got the car to start after multiple attempts of starting… I took it for a drive it felt like it drove normal it ran good didn’t cut off at all when I got home I shut it up and tried to start back up and it started doing the same thing A very loud grinding noise almost
Grinding noise from a car engine/car is not a good sound. Ever.

Unless you want to are capable of fixing this on your driveway (which (surprise.... NOT) probably will require a new starter) time to get the car to a qualified shop for a professional's diagnosis and repair.
Appreciate 0
      11-16-2024, 05:16 PM   #5
bmwm850
Registered
0
Rep
3
Posts

Drives: 2020 BMW M850i
Join Date: Nov 2024
Location: Wisconsin

iTrader: (0)

Quote:
Originally Posted by RockCrusher View Post
Grinding noise from a car engine/car is not a good sound. Ever.

Unless you want to are capable of fixing this on your driveway (which (surprise.... NOT) probably will require a new starter) time to get the car to a qualified shop for a professional's diagnosis and repair.
Appreciate the help man I actually fixed the issue over the week I installed downpipes to the car and I made a rookie mistake of taking off a bracket that held the stock catalytic converter on not thinking I needed it anymore and it’s actually what held the starter in place also… appreciate the help though!!!
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 03:27 AM.




m5:
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST