E21 Technical

Forum

Topics

Posts

Last post

Our top tech topics
Topics: 30

30 Topics

580 Posts

Last post Re: Coversion to electric pow…
by Jeroen View the latest post
Fri May 08, 2026 11:28 pm

New Topic

2637 topics

Page 1 of 53
- Jump to page:
1
2
3
4
5
…
53
Next

Topics

Replies

Views

Last post

Tensioner fails to bleed, ideas? (Solved)

Last post by Jeroen « Thu Feb 27, 2025 2:40 pm
Replies: 11
by Stand-in » Thu Feb 06, 2025 2:04 am

11 Replies

21344 Views

Last post by Jeroen
Thu Feb 27, 2025 2:40 pm
Please note before posting issues here

Last post by Manitoba « Mon Dec 06, 2021 8:32 am
Replies: 5
by Jeroen » Mon Jun 22, 2015 12:01 pm

5 Replies

47179 Views

Last post by Manitoba
Mon Dec 06, 2021 8:32 am
Important warning for users of ETK, BMWFans, RealOEM, etc.

Last post by Jeroen « Tue Sep 01, 2015 2:27 pm

by Jeroen » Tue Sep 01, 2015 2:27 pm

0 Replies

64227 Views

Last post by Jeroen
Tue Sep 01, 2015 2:27 pm
All pls read: where can I find... (parts/services)

Last post by Jeroen « Thu Jul 17, 2014 12:53 pm

by Jeroen » Thu Jul 17, 2014 12:53 pm

0 Replies

41433 Views

Last post by Jeroen
Thu Jul 17, 2014 12:53 pm
Recomended body shop West London?

Last post by Vic « Tue May 05, 2026 7:27 pm
Replies: 2
by Vic » Tue Mar 24, 2026 8:14 pm

2 Replies

304 Views

Last post by Vic
Tue May 05, 2026 7:27 pm
Rear vent windows

Last post by Atle_323i « Tue Apr 21, 2026 4:45 pm
Replies: 2
by Atle_323i » Sun Apr 19, 2026 4:59 pm

2 Replies

264 Views

Last post by Atle_323i
Tue Apr 21, 2026 4:45 pm
Brakepad Wear Sesnor

Last post by nic65 « Thu Apr 02, 2026 2:27 pm
Replies: 3
by BMW3000 » Tue Mar 31, 2026 7:54 pm

3 Replies

335 Views

Last post by nic65
Thu Apr 02, 2026 2:27 pm
E12 520/6 to Motronic conversion.

Last post by Jeroen « Mon Mar 30, 2026 9:09 am
Replies: 7
by Sriufke » Sun Mar 15, 2026 6:31 pm

7 Replies

2611 Views

Last post by Jeroen
Mon Mar 30, 2026 9:09 am
Recommended tyres for 13 inch wheels

Last post by Jeroen « Fri Mar 27, 2026 4:40 pm
Replies: 5
by Alf123 » Mon Mar 23, 2026 11:38 pm

5 Replies

405 Views

Last post by Jeroen
Fri Mar 27, 2026 4:40 pm
Min TCU wiring for 82' e21 with M52TU and Auto transmission

Last post by Jeroen « Tue Mar 24, 2026 9:27 am
Replies: 1
by bimmeup02 » Tue Mar 24, 2026 1:30 am

1 Replies

544 Views

Last post by Jeroen
Tue Mar 24, 2026 9:27 am
Exhaust Gas Analyzer

Last post by Hunterajck « Sun Mar 15, 2026 10:26 pm
Replies: 5
by runsub5 » Wed Dec 27, 2017 9:03 pm

5 Replies

6396 Views

Last post by Hunterajck
Sun Mar 15, 2026 10:26 pm
Starter wiring questions

Last post by Jeroen « Tue Mar 10, 2026 10:26 pm
Replies: 1
by jeepjones03a3 » Mon Mar 09, 2026 7:32 pm

1 Replies

1588 Views

Last post by Jeroen
Tue Mar 10, 2026 10:26 pm
Mechanical Fuel Pump

Last post by Jeroen « Tue Feb 10, 2026 4:18 pm
Replies: 6
by 20cent » Fri Jun 19, 2020 11:04 pm

6 Replies

17343 Views

Last post by Jeroen
Tue Feb 10, 2026 4:18 pm
Starting issues cont.

Last post by jeepjones03a3 « Wed Jan 21, 2026 9:07 pm
Replies: 6
by jeepjones03a3 » Tue Jan 13, 2026 10:43 pm

6 Replies

16064 Views

Last post by jeepjones03a3
Wed Jan 21, 2026 9:07 pm
E21 randomly shut off while driving, cant start it back up

Last post by nic65 « Wed Jan 21, 2026 9:31 am
Replies: 6
by Mailxpur » Mon Jun 23, 2025 5:40 pm

6 Replies

15209 Views

Last post by nic65
Wed Jan 21, 2026 9:31 am
M20 with Webcon intake and triple weber 45DCOE

Last post by Benchapman99 « Mon Jan 19, 2026 6:00 pm
Replies: 10
by AdamB » Mon Feb 15, 2021 2:29 am

10 Replies

17445 Views

Last post by Benchapman99
Mon Jan 19, 2026 6:00 pm
E21 braking solutions

Last post by nic65 « Mon Jan 19, 2026 10:04 am
Replies: 3
by Tanner_P95 » Fri Jan 16, 2026 5:59 pm

3 Replies

11263 Views

Last post by nic65
Mon Jan 19, 2026 10:04 am
Steering wheel adjustment

Last post by Jeroen « Sat Jan 10, 2026 11:07 pm
Replies: 5
by repoman » Sat Jan 10, 2026 3:25 am

5 Replies

12080 Views

Last post by Jeroen
Sat Jan 10, 2026 11:07 pm
Your top 5 performance mods?

Last post by uwbuurman « Thu Jan 08, 2026 8:16 am
Replies: 31
by Amur73 » Fri Aug 06, 2021 8:39 am
1

2

3
31 Replies

64819 Views

Last post by uwbuurman
Thu Jan 08, 2026 8:16 am
Noisy Fan In The Heater

Last post by Jeroen « Sun Jan 04, 2026 11:07 pm
Replies: 6
by e21Keith » Thu Jul 11, 2019 3:21 pm

6 Replies

17140 Views

Last post by Jeroen
Sun Jan 04, 2026 11:07 pm
Starting issues

Last post by jeepjones03a3 « Mon Dec 15, 2025 3:41 pm
Replies: 2
by jeepjones03a3 » Mon Dec 15, 2025 7:04 am

2 Replies

11594 Views

Last post by jeepjones03a3
Mon Dec 15, 2025 3:41 pm
Doors not closing easily

Last post by Amur73 « Fri Dec 12, 2025 12:05 am
Replies: 2
by Amur73 » Thu Dec 11, 2025 10:25 pm

2 Replies

11271 Views

Last post by Amur73
Fri Dec 12, 2025 12:05 am
Hesitation, won’t rev past 4000 rpm, stalls when warm

Last post by Jeroen « Sun Nov 30, 2025 10:30 pm
Replies: 4
by jaquimbayod » Fri Oct 31, 2025 12:46 pm

4 Replies

12384 Views

Last post by Jeroen
Sun Nov 30, 2025 10:30 pm
Is it possible to buy new front control arms without bushes?

Last post by Jeroen « Tue Nov 25, 2025 10:48 pm
Replies: 7
by Jack25 » Mon May 30, 2016 11:25 am

7 Replies

18107 Views

Last post by Jeroen
Tue Nov 25, 2025 10:48 pm
New Pioneer SXT-C10PS Radio? Anyone tested it?

Last post by Sierpien « Thu Nov 20, 2025 4:05 am
Replies: 4
by Sierpien » Mon Nov 17, 2025 5:04 pm

4 Replies

13245 Views

Last post by Sierpien
Thu Nov 20, 2025 4:05 am
Headlight Wipers

Last post by otto29 « Thu Oct 30, 2025 10:38 am
Replies: 7
by Bigmeat » Sun Oct 26, 2025 7:51 pm

7 Replies

13378 Views

Last post by otto29
Thu Oct 30, 2025 10:38 am
1981 316 RHD Brake booster replacement options

Last post by leonardgreggE21 « Mon Oct 20, 2025 12:33 pm
Replies: 5
by leonardgreggE21 » Tue Oct 07, 2025 8:08 pm

5 Replies

13028 Views

Last post by leonardgreggE21
Mon Oct 20, 2025 12:33 pm
Bilstein B8 Bump Stops

Last post by kam « Mon Oct 20, 2025 12:14 pm
Replies: 5
by Vic » Thu Jul 17, 2025 12:00 pm

5 Replies

15989 Views

Last post by kam
Mon Oct 20, 2025 12:14 pm
BMW 320i fuel pump issues

Last post by Jeroen « Mon Oct 06, 2025 2:45 pm
Replies: 1
by Nibroc08 » Mon Oct 06, 2025 2:47 am

1 Replies

12258 Views

Last post by Jeroen
Mon Oct 06, 2025 2:45 pm
poor fuel consumption - issues with carb?

Last post by Jeroen « Thu Sep 25, 2025 8:23 am
Replies: 3
by ryleybob » Tue Sep 23, 2025 4:29 am

3 Replies

27665 Views

Last post by Jeroen
Thu Sep 25, 2025 8:23 am
Using 731 head compared to standard 200 head

Last post by Jeroen « Wed Sep 17, 2025 9:38 pm
Replies: 24
by Atle_323i » Mon Aug 11, 2025 8:30 pm
1

2
24 Replies

46614 Views

Last post by Jeroen
Wed Sep 17, 2025 9:38 pm
Differential 33111207311

Last post by user.sven « Wed Sep 17, 2025 6:07 pm
Replies: 2
by user.sven » Tue Sep 16, 2025 3:08 pm

2 Replies

12915 Views

Last post by user.sven
Wed Sep 17, 2025 6:07 pm
Water pump removal - best practices for bolt removal

Last post by repoman « Sat Sep 06, 2025 9:45 pm
Replies: 2
by repoman » Sat Sep 06, 2025 6:13 pm

2 Replies

17947 Views

Last post by repoman
Sat Sep 06, 2025 9:45 pm
Warm up regulator to fuel distributor line

Last post by uwbuurman « Fri Aug 22, 2025 11:38 pm
Replies: 5
by jeepjones03a3 » Thu Aug 14, 2025 12:57 am

5 Replies

18802 Views

Last post by uwbuurman
Fri Aug 22, 2025 11:38 pm
323i clutch and pressure plate confusion

Last post by e21Keith « Sat Aug 16, 2025 10:44 am
Replies: 1
by lolomovil » Thu Apr 24, 2025 3:08 am

1 Replies

17453 Views

Last post by e21Keith
Sat Aug 16, 2025 10:44 am
M20 Rocker cover Breather

Last post by e21Keith « Sat Aug 16, 2025 10:39 am
Replies: 2
by hannaconner » Tue Jul 08, 2025 6:58 am

2 Replies

13532 Views

Last post by e21Keith
Sat Aug 16, 2025 10:39 am
Temp sensor for 2 stage fan E21 323i

Last post by uwbuurman « Fri Aug 15, 2025 8:50 pm
Replies: 6
by Atle_323i » Thu Aug 14, 2025 11:48 am

6 Replies

13883 Views

Last post by uwbuurman
Fri Aug 15, 2025 8:50 pm
BMW 315 E21 Wiring Diagram.

Last post by uwbuurman « Thu Jul 17, 2025 3:22 pm
Replies: 2
by Vmanns » Sat Jul 12, 2025 1:07 am

2 Replies

12979 Views

Last post by uwbuurman
Thu Jul 17, 2025 3:22 pm
Bonnet pull catch broken - how to open bonnet?

Last post by mattyboy666 « Sun Jun 22, 2025 11:54 am
Replies: 12
by leonardgreggE21 » Sun Dec 11, 2016 2:52 pm

12 Replies

46850 Views

Last post by mattyboy666
Sun Jun 22, 2025 11:54 am
Coolant mixing with oil

Last post by Jeroen « Fri Jun 20, 2025 2:14 pm
Replies: 1
by 1981 e21 » Thu Jun 19, 2025 11:29 pm

1 Replies

17626 Views

Last post by Jeroen
Fri Jun 20, 2025 2:14 pm
E21 fuel sender

Last post by Yuji « Wed Jun 18, 2025 7:36 pm
Replies: 4
by Yuji » Thu May 29, 2025 4:34 pm

4 Replies

13733 Views

Last post by Yuji
Wed Jun 18, 2025 7:36 pm
Vacuum limiter specifications?

Last post by uwbuurman « Wed Jun 18, 2025 12:42 am
Replies: 9
by Stand-in » Wed Jun 11, 2025 7:20 am

9 Replies

40567 Views

Last post by uwbuurman
Wed Jun 18, 2025 12:42 am
Ignition Upgrade Time...

Last post by Wilmo « Sun Jun 15, 2025 11:51 pm
Replies: 2
by e34pilot » Sun Jun 15, 2025 1:49 am

2 Replies

15237 Views

Last post by Wilmo
Sun Jun 15, 2025 11:51 pm
E21 break upgrade - Volvo V70r?

Last post by Jeroen « Wed Jun 11, 2025 11:42 pm
Replies: 4
by arimannni » Sat Nov 16, 2024 10:50 am

4 Replies

24239 Views

Last post by Jeroen
Wed Jun 11, 2025 11:42 pm
E21 track build subframe questions

Last post by HotDogE21 « Tue Jun 10, 2025 5:18 am
Replies: 3
by HotDogE21 » Mon Jun 02, 2025 4:41 am

3 Replies

14762 Views

Last post by HotDogE21
Tue Jun 10, 2025 5:18 am
316 throttle cable issues

Last post by finsin_m10_316 « Wed May 28, 2025 11:36 am
Replies: 5
by finsin_m10_316 » Mon May 26, 2025 11:03 am

5 Replies

14812 Views

Last post by finsin_m10_316
Wed May 28, 2025 11:36 am
Camshaft for m20 b23 with 200 head?

Last post by Willye21 « Tue May 27, 2025 9:23 pm

by Willye21 » Tue May 27, 2025 9:23 pm

0 Replies

12227 Views

Last post by Willye21
Tue May 27, 2025 9:23 pm
Temperatur time switch 35Cel

Last post by nic65 « Thu May 22, 2025 6:57 pm
Replies: 3
by Atle_323i » Wed May 21, 2025 10:15 am

3 Replies

13737 Views

Last post by nic65
Thu May 22, 2025 6:57 pm
My alpina b6 2.8 looking for ecu

Last post by uwbuurman « Sun Apr 20, 2025 12:07 pm
Replies: 6
by masa » Wed Mar 12, 2025 7:35 am

6 Replies

15598 Views

Last post by uwbuurman
Sun Apr 20, 2025 12:07 pm
Novice maintenance mishap. Plug wires?

Last post by Wilmo « Tue Apr 08, 2025 5:07 pm
Replies: 4
by Proton » Mon Apr 07, 2025 10:13 pm

4 Replies

20834 Views

Last post by Wilmo
Tue Apr 08, 2025 5:07 pm

New Topic

2637 topics

Page 1 of 53
- Jump to page:
1
2
3
4
5
…
53
Next

Return to Board Index

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum