BMW Bosch DME Motronic 1.3 Connector / Plug Pinout Diagram

 

Pin Connection

1. 1  ignition coil: t1

2. 2  earth, ignition driver

3. 3  pump relay driver: t85

4. 4  ISCV switching: t1

5. 5  CFSV switching: t1

6. 6  tachometer

7. 7  AFS signal: t2

8. 8  CID signal: t2

9. 9  unused

10. 10  OS return: t4

11. 11  unused

12. 12  AFS supply: t3

13. 13  diagnostic socket : t15

14. 14  earth, injector driver

15. 15  warning lamp (US only)

16. 16  injector pulse, cyls 2 and 4

    (model year 89: cyls 1 and 3)

17. 17  injector pulse, cyls 1 and 3 (model year 89: cyls 2 and 4)

18. 18  battery supply: t30

19. 19  earth, main ECM and shield

20. 20  unused

21. 21  unused

22. 22  unused

23. 23  OS relay driver : t85

24. 24  earth, output drivers other

    than injector & ignition

25. 25  unused

26. 26  AFS return: t5

27. 27  ignition switch: t15

28. 28  OS signal: t3

29. 29  VSS

30. 30  unused

31. 31  CID return: t1

32. 32  fuel consumption meter

33. 33  kick down prevent, AT

34. 34  unused

35. 35  unused

36. 36  main relay driver: t85

37. 37  nbv supply from main relay: t87

38. 38  anti-theft system

39. 39  diagnostic socket : t18

40. 40  A/C pressure switch

41. 41  A/C motor switch

42. 42  AT drive selector

43. 43  CO pot (AFS : t3)

44. 44  ATS (AFS : t4)

45. 45  CTS signal: t2

46. 46  unused

47. 47  CAS: t1

48. 48  CAS return: t2

49. 49  unused

50. 50  unused

51. 51  Ignition timing intervention (Electronic transmission control)

           Note: temporarily switched on during AT downshifts

52. 52  TPS idle contact : t1

53. 53  TPS full-load contact : t3

54. 54  unused

55. 55  diagnostic socket : t20

BMW Bosch Motronic 1.3 DME/ECU: Wiring Diagram + Chip Layout

Diagrams showing the internal wiring structure of the Bosch 1.3 DME electronic control unit for injected BMWs that use it, E30, E28, E34, etc...

High quality PDF - HERE.

Bosch Motronic 1.1-1.3 DME Complete Guide - HERE.

Bosch Motronic Plug Connector Pinouts - HERE.

E34 5 Series 'Countryman' Touring X-Over Lifestyle utility concept... with pop-out tent...what?!

Well, I really have now seen it all. This is something I never expected to see from BMW, given their sporty, driver-focused image, but here it is... The E34 5 Series Touring utility camping wagon! Not only is it lifted with bigger tyres and sports obligatory 4x4 style two-tone paint, but it even sports a 'pop-out' camper roof and folding tent! This idea was only ever adopted in one vehicle I know of and that was the truly ill-received Pontiac Aztec some 10 years later, with the tent thing actually being one of its saving graces! You heard it from Bavaria first.

The concept is of the early 1990's, which means it also pre-dates Audi's 'Allroad' Quattro and Volvo's V70 XC / Cross Country, both of which were released and saw quite a bit of niche popularity, not to mention Subaru's ever popular Forester that seem to still be seen all over. The Audi and Subaru of course had 4-wheel drive as standard and the Volvo has it as an option, whereas the BMW would have still only been rear-wheel drive.. Can't imagine this would have been too good on a muddy camp-site field! It certainly wouldn't appeal stylistically to the same sort of younger BMW driver's who drift round ploughing up fields for fun anyway and perhaps doesn't quite fit with the BMW ethos overall, so I can see why it was overlooked and never made it into production. X-Drive all-wheel drive only became a feature in this millennium, which would have suited this thing to a tee and may have even brought it into production, but with such a limited market maybe the world has moved on.

Personally, I love it! Maybe I will recreate one from my E46 Touring! I challenge someone to beat me to it!

This reminds me, I really must get on a 'camping' trip in the 318i wagon when the epidemic is over and camp in the car, which I've been planning to do for a while now. I thought I was the only one eccentric enough to have such an idea... but no, some design team at BMW had the same notion, only over 35 years ago!

Photo of E34 5er Production Line, Munich, circa 1990

Check out this BMW Munich factory photograph of the E34 5-Series in production during the quality-control process. It would have been taken around 1990. I wonder if the workers in the foreground by the Henna Red car are smiling just for the camera, or if they are actually just that happy to be doing what they are doing. I choose to believe it is the latter, but either way just look at the full compliment of moustaches...
As for the guy stood to the rear of the blue model behind - check out those grey slip-on shoes! I think he took these from pop-star Falco's personal collection. Der Kommissar ist on der floor! The shop floor that is... Clearly these were the days before 'Health & Safety' madness and mandatory steel-toe boots and hi-vis.
What a great photo and man, do I feel like getting an E34 sometime soon. Shame they are shooting up in value here in the UK.

BMW M10 Engine Family Tree

Interesting press release from BMW showing some derivatives of the much-loved 4-cylinder M10 engine, which I have covered in much detail before.

"With half the cylinders and half the power of todays V8 M3, the original 1986 car remains one of our all-time favourites. Its seemingly indestructible four-cylinder iron block, however, goes back to 1962 and the BMW 1500. This was also the block that formed the basis of the 1.5-litre turbo F1 engines that powered Brabham to many a race victory. That's not just the block type -- BMW Motorsport used actual 1500 blocks sourced from scrapyards, because the older the block, the fewer stresses remaining in it. Never has a production engine family been more versatile."