How To Bypass Ews On BMW E36?

BMW / By

Some men are telling you how to deactivate or bypass the EWS on… In all E36s, for instance, from January 1995 until the…

On the E36 chassis, EWS

Through the years, the E36’s exact EWS implementation changed a little bit, but the system’s basic lack of long-term dependability remained the same. Failures of modules, antennas, and keys are more frequent than they ought to be. The arrangement may also be problematic when changing out motors.

All of our OBD1 performance chips for the 413/506 are EWS deletion chips because of this. A special EWS delete-only chip that solely disables EWS is also available from us.

We also provide EWS deletion solutions for the MS41-based E36s for OBD2 enabled vehicles or for vehicles with older motors that have been converted to OBD2 compatibility.

If the chassis of an OBD1 vehicle had EWS installed, you must use an EWS delete chip to cut the connection between the EWS computer and the DME. Either the X20 side or the DME side (pin 66) can be used to disconnect the wiring (pin 7). The X20 is the most accessible and straightforward to modify.

We advise pulling the X20’s pin out. (Large round plug next to the fuse box) If you take off that connector, pull back the boot, locate pin 7 (the green wire), turn the connector’s lock mechanism counterclockwise, push pin 7 out of the connector, lock the connector again, fold the pin/wire back into the boot, reinstall the boot, and screw the connector back on.

There is also a starter lockout for vehicles with EWSII technology. We advise omitting that as well. There are only two substantial wires on the EWSII module itself. The starter solenoid’s wires are those. Your car will start even if the key transmitter or antenna malfunctions if you cut them close to the plug and then butt connection them together.

How to evaluate your BMW EWS 2 before changing it

We must always test the EWS 2 First, keep in mind that your starter is essentially performed a U turn (Loop) by the built-in RELAY of the EWS system. Since most models differ, let’s start by locating your EWS. You can click EWS Locations to see the EWS locations for BMW and Mini Cooper.

  • Step 1: Verify that your car’s engine is not turning over or cranking.
  • In order to remember where it is, step 2 is to take out your EWSII Unit and place it on the passenger seat.
  • Step 3: Place a WIRE (the two thickest wires) into Pins 1 and 3 of the EWSII Female plug (See Picture Below) Keep in mind that the wire must be snugged into the spherical female pins.
  • Step 4: Try to start the engine; all we are looking for is a crank; the engine won’t operate, but for now, all we need is for it to turn over.
  • If the engine is cranking at this point, move on to Step 6; otherwise, move on to Step 8.
  • Step 6: Given that the engine is cranking, we still have one step to complete. Please double-check the EWS FEMALE PLUG’s pins. (We just utilize PIN numbers; we don’t use colors.) (Requires test light or multimeter)
  • Step 8: (Engine Still Does Not Crank) To ensure that Pin 3 (EWS Female Plug) receives a +12V, you must check. Please proceed to Step 9 if you are receiving a +12V signal on PIN 3 of the EWS female plug. Please proceed to Step 10 if Pin2 on the EWS Female plug is NOT receiving a +12V.
  • Step 9: (You are getting +12V from pin 3 in the EWS Female Plug : This means your Starter May or May Not be getting a +12V signal — Go to your starter and make sure a +12V signal is being delivered. If this is confirmed to be true, replace your starter.
  • Step 10: (If pin 3 is not providing a +12V signal: Go back to your Ignition Switch and see if its producing a 12V signal — If there isn’t any 12 volt output, make sure the ignition switch is powered. (Power MUST be present on ALL Solid RED Wires.) IF there is +12VGO, proceed to Step 11. Go to step 12 if there is no +12V on the RED solid wires.
  • Replace the ignition switch in step 11.
  • Step 12: Examine fuses, frayed wires, etc. if the ignition switch is not getting power.

Where in BMW is EWS located?

First, we’ll begin by removing and replacing your BMW E39’s Engine Computer (DME) (Scroll down forEWSRemoval)

1. Start by removing the push retention clips from the cover for the area just above the gas and brake pedals. The three Phillips screws are then removed.

2. Next, take off the two wood trims that are attached to the steering wheel’s sides. The electrical connector must also be unplugged.

3. Take off the cover that is just beneath the steering wheel. There are 7 Phillips screws holding it in. The leather component of that cover should then be carefully unclipped from the steering wheel using a flat-bladed screwdriver.

4. Directly beneath the steering column is where you’ll find the EWS module. Two Phillips screws hold the module in place. To remove it, you’ll need a little Phillips screwdriver.

Please look at the photos below; they will assist you in removing your EWS unit.

What year did BMW debut EWS?

BMW debuted the EWS2 system in 1995 to passively immobilize engine management systems. This was the first time transponders with rolling type encryption codes have been put inside the ignition key.

The transponder code and the EWS module’s primary purpose was to cycle through the algorithm’s next number every time the key was turned. Additionally, the proper signal was provided to DME to enable the fuel and ignition procedures. The starter would also be disabled by the EWS module if the erroneous key was given.

Later in the manufacturing process, this was added to EWS 3 and installed closer to the transponder read coil, eliminating the need to install a read and transmit module next to the ignition switch. This mechanism, which is also present in MINIs, was in use until the E46’s discontinuation at the end of 2007.

The module was pre-programmed with 10 keys at the manufacture for the EWS2 and EWS3 models. Each vehicle received only three of the spare key identities, leaving seven in the module for potential future use. When new keys are obtained with all the necessary documents, the dealer issues these. They require only a brief remote control programming process before they are pre-programmed and ready to start the vehicle.

The assistance line is useful in this situation. This program has a problem. We frequently receive inquiries from mechanics who have serviced these models with EWS immobilization. Then they informed us that nothing we could have done could have caused our BMW to not start. It was only there for a small amount of work, but now it has a code for EWS interference or a bad key. One key belongs to the customer only! a

Did you keep the key in the ignition? Only for a few hours while we maintained it, but we always had a battery charger running.

It is a regular issue with this system that you were able to remove the key from the EWS. The system invalidates a key if it is turned on and the engine is not started for a prolonged period of time.

There is a fix. Using the right tools, you may read the MCU data included in the EWS, create a new key, and assign it to a spare location in one of the vacant slots in the remaining seven.

This programming can be done by any competent locksmith for you. Or have the primary dealer order a replacement for you.

Describe EWS e46 m3.

A critical component of the BMW security system, the EWS control unit makes sure that the engine won’t start unless the proper “chipped” key is used.

As these vehicles begin to age and frequently require expensive repairs, the EWS system might become problematic.

EWS removal provides a smooth transition if a customer intends to track their vehicle or prepare the engine for an engine transfer into anything different. When installing used DME control units, this is very helpful.

To completely disable the EWS function, we physically remove the EWS control unit from the car, rewire the starting exciter, and reprogramme the DME control unit. Nothing needs to be aligned, etc. This service completely disables the factory immobilizer.

EWS remove E46: What is it?

Only previously sealed ECUs or ECUs that are Spec E46 at the time of sealing are eligible for the optional EWS Removal, which is offered at a significantly discounted cost (and purchase of Spec E46 calibration).

Your Spec E46 can start and operate without the instrument cluster or key being installed or in tact if EWS is removed. You must submit your current sealed, unaltered Spec E46 ECU if you later decide to purchase EWS removal for a sealed Spec E46 ECU; otherwise, you will be charged the sealing cost once more. Your ECU will be fully sealed (per Spec E46 standards) and equipped with tamper-proof seals when it is returned. If these seals are changed, you must return to Epic Motorsports for a thorough examination and possible reflash (and additional charge).

You must submit the ECU from your running automobile as a core for any ECU work. The approximate date of the switch from the Ms43 to the Ms45 ECU is 7/2003 manufacturing, but please verify by visually reading the label on your ECU before purchase.

Please ask about the Epic Motorsports calibrations we offer for a variety of BMW models.

Processing Guidelines Your ECU must be taken out and sent directly to Epic Motorsports. Include a printed copy of your BimmerWorld order along with $600 worth of insurance with your shipment. Then send an email to [email protected] with your tracking number and your BimmerWorld order number. To: Send an insured ECU package

Your ECU’s sealing procedure will take longer to complete than a bespoke flash and could take up to one business week. If you plan ahead, rush processing is an option. You MUST discuss this with your salesperson at the time of purchase to find out if your current work schedule permits the expedited processing.

Your ECU cannot be overwritten or modified in the future once it has been sealed. For a cost, Epic Motorsports will be able to undo this technique in the future, but it will necessitate opening the ECU and destroying the Spec E46 Seals. You must deliver your ECU to Epic Motorsports for a thorough examination and probable reflash if your Spec E46 seals are damaged (and additional charge).

Emissions Non-Compliance Notice. This item is only meant to be used with racing cars that are never allowed to be registered or licensed for usage on a public roadway. A pollution-controlled road vehicle’s emissions equipment cannot be removed, disabled, or altered. It’s also prohibited to install hardware or software on a road vehicle that tricks, disables, or modifies emissions controls and monitors. This item is exclusively sold for off-road racing, competition, track, recreational, or other uses. Any motor vehicle that is subject to emissions inspection or control is not allowed to utilize it. Any state, province, or other jurisdiction that is subject to, or has implemented, CARB or EPA laws does not permit its installation or usage on any pollution-controlled motor vehicle. BimmerWorld maintains the right to cancel any part(s) that are not for legal racing or track purposes and may verify a customer’s racing license, entry, or participation in a race. Certain states or territories are exempt from some suppliers’ shipping policies, which results in longer delivery times. Any delays will be communicated to you.