M50/S50/M52/S52 for E30

Use this option if you plan to send us your engine harness to be modified. This option will eliminate the need for an adapter.

Send us a message letting us know your swap plans and we will modify you harness accordingly.

E30 Year
Options List
E30 Model (EX: 325is)

M50/S50/M52/S52 obd1 for E30

These adapters include the following:

  • 3 extra wires for MPG, Tachometer signal, and Vehicle Speed Signal. (84-85 and 86-87 models that have the extra c104 connector in the glovebox)

  

  • OPTIONAL: E34 Oil level sensor connector
  • OPTIONAL: A/C input wiring
  • OPTIONAL: Extra wire for the ABS power (90+ models)
  • OPTIONAL: Oil temperature connector (E30 M3)
E30 Year
Options List
E30 Model (EX: 325is)
M3 Oil Temperature (Yes or No)

M52(single vanos)/S52 obd2 for E30

These adapters include the following:

  • 3 extra wires for MPG, Tachometer signal, and Vehicle Speed Signal. (84-85 and 86-87 models that have the extra c104 connector in the glovebox)
  • Cluster Temperature Wiring

  

  • OPTIONAL: E34 Oil level sensor connector
  • OPTIONAL: A/C input wiring
  • OPTIONAL: Extra wire for the ABS power (90+ models)
  • OPTIONAL: Oil temperature connector (E30 M3)
E30 Year
Options List
E30 Model (EX: 325is)
M3 Oil Temperature (Yes or No)

M52TU for E30

**Must use with MS42 DME

Please let us know which engine harness you plan on using (E39, E46, Z3, etc.)

These adapters include the following:

  • Cluster temperature connector
  • OBD2 diagnostic port
  • Fuel pump wiring and relay

  

  • OPTIONAL: E34 Oil level sensor connector
  • OPTIONAL: Extra wire for the ABS power (90+ models)
  • OPTIONAL: Oil temperature connector (E30 M3)
  • OPTIONAL: SAP wiring and relay 
E30 Year
Options List
E30 Model (EX: 325is)
SAP relay (Yes or No)

M54 for E30  

**Must use with MS43 DME 

Please let us know which engine harness you plan on using (E39, E46, Z3, etc.)

These adapters include the following:

  • Cluster temperature connector
  • OBD2 diagnostic port
  • Fuel pump wiring and relay
  • Electronic accelerator pedal connector

  

  • OPTIONAL: E34 Oil level sensor wiring
  • OPTIONAL: Extra wire for the ABS power (90+ models)
  • OPTIONAL: Oil temperature connector (E30 M3)
  • OPTIONAL: SAP wiring and relay
E30 Year
Options List
E30 Model (EX: 325is)
SAP relay (Yes or No)

S54 for E30

**Must use with MSS54 DME

Please let us know which engine harness you plan on using (E46, Z3, etc.)

**These will require the Timed EKP modul fuel pump relay BMW Part# 61357892976. This relay is not included.

  

 These adapters include the following:

  • Cluster temperature connector
  • OBD2 diagnostic port
  • Fuel pump wiring, NO relay included
  • Electronic accelerator pedal connector
  • Momentary switch for Sport mode

  

  • OPTIONAL: Extra wire for the ABS power (90+ models)
  • OPTIONAL: Oil temperature connector (E30 M3)
  • OPTIONAL: SAP wiring and relay 
  • OPTIONAL: Euro fuel pump wiring (Relay included) 
E30 Year
Options List
E30 Model (EX: 325is)
FP relay style (USA or Euro)

S62 for E30

**Must use with MSS52 DME  

**These will require the Timed EKP modul fuel pump relay BMW Part# 61357892976. This relay is not included.

Best used with the E39/M5 engine harness.

  

 These adapters include the following:

  • Cluster temperature connector
  • OBD2 diagnostic port
  • Fuel pump wiring, NO relay included
  • Electronic accelerator pedal connector
  • Momentary switch for Sport mode

  

  • OPTIONAL: Extra wire for the ABS power (90+ models)
  • OPTIONAL: Oil temperature connector (E30 M3)
  • OPTIONAL: SAP wiring and relay 
  • OPTIONAL: Euro fuel pump wiring (Relay included) 
E30 Year
Options List
E30 Model (EX: 325is)
FP relay style (USA or Euro)

M62TU for E30

Best used with the E39 engine harness.

  

 These adapters include the following:

  • Cluster temperature connector
  • OBD2 diagnostic port
  • Fuel pump wiring and relay
  • Electronic accelerator pedal connector

  

  • OPTIONAL: Extra wire for the ABS power (90+ models)
  • OPTIONAL: Oil temperature connector (E30 M3)
  • OPTIONAL: SAP wiring and relay
E30 Year
Options List
E30 Model (EX: 325is)

M60/M62 obd1 for E30

 These adapters include the following:  

  

  • OPTIONAL: A/C input wiring
  • OPTIONAL: Oil level sensor wiring (E30s with check control panel)
  • OPTIONAL: ABS power wire (90+ models)       

 

  

E30 Year
Options List
E30 Model (EX: 325is)
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BMW E30 Harnesses

  

E30 Chassis Years and Models included (But not limited to): :  

  • 84-85    325
  • 86-87    318i, 325/e/es, 325i/is/ic, m3
  • 87-89    316i, 318i/is, 320i/is, 325i/is/ic, 325ix, m3
  • 90-93    318i/is, 325i/is/ic, 325ix,  m3

The original engines from the chassis listed above include the M10, M20, M40, M42, and S14.

*If you are planning on using an automatic transmission, please send us a message.

  

LIFETIME Warranty with all harnesses!

This warranty only extends to the original purchaser and is limited to workmanship only. If you have any problem with these, just send us a message and we will take care of it.

  

**If you plan to use a Z3, M Roadster, or M Coupe harness, please let us know.**

  

We make harness adapters for all of the following engines:

  • M50
  • S50 (US and Euro)
  • M52 (Single Vanos)
  • S52
  • M52TU (Double Vanos)
  • M54
  • S54 (US and Euro)
  • M60 or M62 (obd1)
  • M62TU (obd2)
  • S62

     

We have our own complete diagrams for each of these motors and chassis. We have spent our own time figuring these setups out. For the newer M52TU, M54, S54, M62TU, and S62, we used the E39 and E46 ETM which is available online and in book form for these diagrams. Therefore the E46 or E39 harness is desired. The standard S54 harness can reach the original ECU location in the glovebox. I will provide a link on the instruction sheet to assist you.

  

All fuses and relays are included with all harnesses. With an exception of the USA Timed EKP modul fuel pump relay for the S54 and S62 harness.

All harnesses have been measured out for LHD vehicles and placing the DME in the glovebox compartment. RHD is available upon request.

The M52TU, M54, and S54 come standard for the E46 engine harness, please let us know if you plan to use another option. (Z3M, E39, X5,etc.)

The M62TU and S62 come standard for the E39/M5 engine harness, please let us know if you plan to use another option.

  

Detailed instructions are included with all harnesses

  

EWS must be deleted.

We now offer the M52TU, M54, S54, and S62 EWS deletes (Free, with a purchase of an adapter harness). Just send us your ECU to be modified and cover the return shipping.

**$70 value without a purchase of a harness.

  

We will assist as much as we can throughout your entire engine swap, not only for the wiring.

  

These can all be customized to order. Please let us know if you have any special requests.

 
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