Frequently – Asked – Questions (FAQ)

N52 (MSV70) –  N52N/N52K (MSV80) – N54 (MSD80/MSD81) – S65 (MSS60)

  1. Do I need an EWS/CAS delete?
    1. It does simply the conversion process on the MSV70 DME. The tune on the MSV70 DME needs to be updated to a Z4 tune anyways. Some companies that are familiar with the MSV70 DME tuning include the following – Bimmworks, 22RPD, and KasselPerformance.
    1. MSV80 and MSD81/81 do not require an EWS/CAS delete.
  2. Why does my E46/E39 RPM and Temperature gauge not work?
    1. This is related to the DME not having a compatible tune. Consult a DME tuner. Recommended tune for the MSV70 is from a Z4.
  3. Why does my electronic throttle not work?
    1. Resetting adaptations will most often resolve this issue.
  4. How do I check the oil level?
    1. Option 1 is to use the emulator by following the instruction sheet. The engine needs to be at operating temperature.
    1. Option 2 is to use a shop diagnostic tool. Refer to instruction sheet for more info.
  5. Why does my Haltech or AEM gauge cluster not connect?
    1. Try selecting various chassis models. The cluster needs to know if the tune is from a Z4, E9x, etc.
  6. Do I use my original key? Or the key from the E9x or E6x donor?
    1. The donor key will be left in the ignition key reader key slot after the initial installation. You will use your original key to start the car. 
  7. Why do my RPMs look wrong?
    1. The N52/N54 is a 6-Cylinder engine. Make sure you have converted your gauge cluster to a 6-Cylinder version, or use a tachometer adapter.
    1. A V8 should use a 4-cylinder cluster coding plug.
  8. What accelerator pedal should I use?
    1. The E46, E39, E6x, or E9x pedals can all be used.
    1. Using the E46/E39 pedal will be an easier install.
  9. Can I use an Automatic transmission? (N52,N54)
    1. Our kit supports a standard manual transmission.
    1. However, we will work with you to get the Auto transmission working.
  10. Can I use a DCT transmission? (S65)
    1. No, our wiring only supports a standard manual transmission at the moment.
  11. Can I use a Bluetooth diagnostic tool?
    1. Short answer is Yes.
    1. The diagnostic tool needs to automatically sync with the DME. To do this, you will need to disconnect the CAN-bus wires from the chassis signals. Otherwise, the diagnostic tool will be getting mixed signal, not allowing it to automatically sync.
  12. Can I use air-conditioning?
    1. We offer an A/C module which will allow A/C to work normally. It needs to be a clutch-style compressor (N52 compressor).
  13. Will all of the original gauges work?
    1. Only the fuel economy gauge will not work.

M50 – S50 – M52 – S52

  1. Do I need an EWS delete?
    1. Yes, an EWS delete is required, unless the EWS wiring has been special ordered.
  2. Can I use an Auto transmission?
    1. Our wiring supports a standard manual transmission.
    1. Auto transmission wiring can be added for an additional cost (some exclusions apply).
  3. Why am I not getting fuel?
    1. Make sure your fuel lines are not reversed. This is a common mistake.
    1. Check fuses and relays.
  4. Why am I not getting spark?
    1. Have you verified by using starting fluid? Maybe it’s fuel related.
    1. Make sure the ECU does not have EWS.
    1. Is the crank sensor in working condition? A new sensor can also be faulty.
    1. Make sure the engine block grounded.
    1. Make sure the battery junction has power.

M52TU (MS42) – M54 (MS43 or MS45) – S54 (MSS54 or MSS54HP)

  1. What wiring do I need?
    1. You will need the main engine harness, transmission/o2 harness, and ignition coil harness. You should already have 4 out of the 5 ECU connectors.
    1. A manual transmission setup still needs the transmission/o2 harness wiring section. There is a manual and an automatic version of the transmission/o2 harness.
      1. A manual setup can use an Auto transmission/o2 harness, leaving the Auto-related parts disconnected.
    1. The transmission/o2 harness must be from the same chassis as the main engine harness.
      1. For example, an E39 engine harness must pair with an E39 transmission/o2 harness.
  2. Do I need an EWS delete?
    1. Yes, an EWS delete is required, unless the EWS wiring has been special ordered.
  3. Can I use an Auto transmission?
    1. The Auto transmission wiring is included with you main engine harness and transmission/o2 harness already.
  4. Why am I not getting fuel?
    1. Check fuses (chassis and engine harness) and relays.
    1. Make sure your engine harness and transmission/o2 harness are a matching pair.
  5. Why am I not getting spark?
    1. Have you verified by using starting fluid? Maybe it’s fuel related.
    1. Make sure the ECU does not have EWS.
    1. Is the crank sensor in working condition? A new sensor can also be faulty.
    1. Make sure the engine block grounded.
    1. Make sure the battery junction has power.
  6. Why do my RPMs look wrong?
    1. Make sure you have converted your gauge cluster to a 6-Cylinder version, or use a tachometer adapter.
  7. What accelerator pedal should I use?
    1. The E46 an E39 pedals can all be used. (Standard kit)
    1. A remote Z3 or E39 pedal can be used too. (Optional kit)
  8. Why does my electronic throttle not work?
    1. Resetting adaptations will most often resolve this issue.
  9. Can I use air-conditioning?
    1. We offer an A/C module which will allow A/C to work normally.
  10. Will all of the original gauges work?
    1. Only the fuel economy gauge will not work.
    1. The Check-Engine light also will not work without a CAN-bus emulator.

M62 (ME5.2) – M62 (ME5.2.1) – M62TU (ME7.2) – S62 (MSS52)

  1. What wiring do I need? (M62 (ME5.2.1), M62TU, S62)
    1. You will need the main engine harness, transmission/o2 harness, and ignition coil harness. You should already have 4 out of the 5 ECU connectors.
    1. A manual transmission setup still needs the transmission/o2 harness wiring section. There is a manual and an automatic version of the transmission/o2 harness.
      1. A manual setup can use an Auto transmission/o2 harness, leaving the Auto-related parts disconnected.
    1. The transmission/o2 harness must be from the same chassis as the main engine harness.
      1. For example, an E39 engine harness must pair with an E39 transmission/o2 harness.
  2. Do I need an EWS delete?
    1. Yes, an EWS delete is required, unless the EWS wiring has been special ordered.
  3. Can I use an Auto transmission?
    1. The Auto transmission wiring is included with you main engine harness and transmission/o2 harness already. Our kit does not include any Auto transmission wiring.
  4. Why am I not getting fuel?
    1. Check fuses (chassis and engine harness) and relays.
  5. Why am I not getting spark?
    1. Have you verified by using starting fluid? Maybe it’s fuel related. Make sure the ECU does not have EWS.Is the crank sensor in working condition? A new sensor can also be faulty. Make sure the engine block grounded.
    1. Make sure the battery junction has power.
  6. What accelerator pedal should I use?
    1. The E46 an E39 pedals can all be used. (Standard kit)
    1. A remote Z3 or E39 pedal can be used too. (Optional kit)
  7. Why does my electronic throttle not work?
    1. Resetting adaptations will most often resolve this issue.
  8. Can I use air-conditioning?
    1. We offer an A/C module which will allow A/C to work normally.
  9. Will all of the original gauges work?
    1. Only the fuel economy gauge will not work.
    2. The Check-Engine light also will not work without a CAN-bus emulator.