BMW X5 E53 E39 E46 Immobilizer EWS3 Control Unit ECU 6135608377 99-06
£18.23
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ThePartPilot - BMW X5 E53 EWS3 Immobilizer Control Unit 6135608377
BMW X5 E53 E39 E46 Immobilizer EWS3 Control Unit ECU 6135608377 99-06
£18.23
THEPARTPILOT
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BMW Factory EWS3 Immobilizer ECU | Over 25,000 Parts Stocked
BMW X5 E53 EWS3 Engine Anti-Theft Immobilizer Control Unit ECU
Up for sale is an original factory BMW EWS3 electronic immobilizer control unit module removed directly from a 2001 BMW X5 E53 5-door SUV. Sourced directly from an operational vehicle, fully inspected for casing integrity, uncorroded terminal pin connections, and verified electronic board condition prior to listing.
Part Specifications & Identification Details
| Parameter | Specification Details |
|---|---|
| Main Stamped Part Number (MPN) | 608377 / 6135608377 |
| BMW Full Interchange Numbers | 61356905670 / 61354100188 / 61356942675 / 61356905668 |
| Hardware & Supplier Codes | E00960801 / HW 03 SW 05 (EWS 3 System) |
| Fitting Location | Under Driver/Passenger Side Dashboard Pillar (Behind Lower Footwell Trim) |
| Material Composition | Impact-Resistant ABS Plastic Casing Housing Integrated Sealed Circuitry & Multi-Pin Connector |
| Control Function | Communicates transponder key data with the Engine Control Unit (DME/DDE) and starter motor relay to prevent unauthorized vehicle ignition starting. |
Confirmed Fitment & Compatibility Chart
Verification Advice: Always check your original module casing for stamped part numbers 608377 / 6135608377 and verify system type (EWS3) before purchasing.
| Make | Model | Body Style | Engine Variants | Fitment Years |
|---|---|---|---|---|
| BMW | X5 (E53) | 5-Door SUV | 3.0i, 4.4i, 4.6is, 4.8is, 3.0d (M54, M62, N62, M57) | 1999 - 2006 |
| BMW | 5 Series (E39) | 4-Door Saloon & Touring Estate | 520i, 523i, 525i, 528i, 530i, 535i, 540i, M5, 520d, 525d, 530d | 1998 - 2004 |
| BMW | 3 Series (E46) | Saloon, Coupe, Convertible, Touring, Compact | 316i, 318i, 320i, 323i, 325i, 328i, 330i, M3, 318d, 320d, 330d | 1998 - 2006 |
| BMW | 7 Series (E38) | 4-Door Saloon | 728i, 730i, 735i, 740i, 750i, 730d, 740d | 1998 - 2001 |
| BMW | Z4 (E85 / E86) | Roadster / Coupe | 2.0i, 2.2i, 2.5i, 3.0i, 3.0si, M 3.2 | 2002 - 2008 |
| Range Rover | L322 (LM) | 5-Door SUV | 4.4 V8 (M62 Engine) & 3.0 TD6 (M57 Engine) | 2002 - 2005 |
CRITICAL FITMENT WARNING - WHAT THIS PART WILL NOT FIT:
- Will NOT fit: Newer EWS4 or CAS1 / CAS2 / CAS3 push-button start systems found on BMW E70 X5 or E60 5 Series.
- Will NOT fit: Early EWS2 systems (pre-1998) utilizing different multi-pin socket shapes.
- Will NOT fit: Vehicles where part numbers do not cross-reference with 6135608377.
Why Choose Factory-Original Over Cheap Aftermarket Copies
- Authentic EWS3 Transponder Protocol: Guarantees proper rolling code synchronization with genuine BMW transponder key chips and DME/DDE engine management systems.
- Programming Notice: Immobilizer modules are security-coded. This recycled module will require EEPROM cloning or coding/EWS alignment to your vehicle's engine ECU and key transponder data using professional BMW diagnostic equipment (e.g., AK90, BMW Scanner, or dealer software).
- Up to 70% Cost Savings: Enjoy authentic factory security hardware while saving up to 70% compared to new BMW main dealer replacement prices.
Symptoms of a Faulty EWS Immobilizer & Why Replacement is Critical
- Engine cranks but fails to start, or complete total loss of starter motor cranking response.
- Key turns in the ignition barrel but instrument cluster displays no starter signal engagement.
- EWS rolling code memory corruption fault codes stored in DME/DDE diagnostic memory.
- Intermittent starting failure, particularly in hot or damp weather conditions.
- Why Replace Promptly: A failed immobilizer control module leaves your vehicle completely stranded and unable to start.
Fitting Instructions, Required Tools & Repair Time
Step-by-Step Fitting Overview
- Disconnect the vehicle 12V battery negative terminal and wait 10 minutes before proceeding.
- Remove lower dashboard trim panel / glovebox footwell cover on the driver or passenger side to locate the EWS module.
- Release the locking lever on the multi-pin electrical harness connector and unplug from the EWS unit.
- Unbolt the two retaining nuts securing the plastic module bracket to the chassis frame.
- Extract old unit, mount replacement module, reattach electrical plug, and secure trim panels.
- Perform EEPROM data transfer, key alignment, or EWS-DME sync via diagnostic tools before attempting initial vehicle start.
Required Tools: 8mm / 10mm Socket, Torx Bit Driver Set, Plastic Trim Removal Pry Tool, BMW EEPROM/EWS Diagnostic Programmer.
Estimated Repair Time: 30 to 45 Minutes (Excluding EEPROM coding time).
Estimated Garage Labor Cost Calculator
| Garage Hourly Rate (£/Hour) | Estimated Fitting Time | Estimated Garage Labor Total |
|---|---|---|
| £60 / hr (Local Independent Workshop) | 0.75 Hours | £45.00 |
| £90 / hr (Regional Average Rate) | 0.75 Hours | £67.50 |
| £130 / hr (Main Dealer / Specialist) | 0.75 Hours | £97.50 |
Workshop Fitting Service Offered: We provide professional installation and diagnostic support at our UK workshop (Subject to availability). Contact our service desk to book your vehicle in!
Our Workshop & 25,000+ Parts Facility
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- Return Policy & 50% Restocking Fee: Any returns opened under "Doesn't Fit" or "Item Not As Described" where listing details and part numbers match will incur a 50% restocking fee deduction. Please contact us with your vehicle registration before buying if unsure!
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