Description
Genuine Mercedes-Benz / Siemens EZL Ignition Control Module
For sale is a genuine OEM Mercedes-Benz EZL ignition control module manufactured by Siemens.
OEM Part Number
012 545 85 32
Also written as:
- 0125458532
- A0125458532
- A 012 545 85 32
- 012-545-85-32
- Siemens 5WK6 405
- 5WK6405
This electronic ignition control unit is used with select Mercedes-Benz vehicles equipped with the legendary M119 V8 engine.
The EZL module controls important ignition functions and is a critical component of the vehicle’s ignition management system.
VEHICLE APPLICATIONS
Known applications include select:
Mercedes-Benz W124
- 500E
- E500
- Chassis 124.036
Mercedes-Benz W140 / V140 S-Class
- 500SE
- 500SEL
- S500
- Chassis 140.050
- Chassis 140.051
Mercedes-Benz R129 SL-Class
- 500SL
- SL500
- M119 V8 applications
IMPORTANT FITMENT NOTICE
Mercedes-Benz used several different EZL modules, calibrations, and superseded part numbers depending on production date, market, engine configuration, and vehicle equipment.
Please verify the number printed on your original module before purchasing.
If your existing unit is marked:
0125458532 / A0125458532
this is the correct primary number to match.
VIN verification is recommended whenever the original module number cannot be confirmed.
POSSIBLE SYMPTOMS OF A FAILED EZL MODULE
A failing ignition control module may be associated with symptoms such as:
- Engine cranks but will not start
- Intermittent no-start condition
- Loss of ignition spark
- Intermittent engine shutdown
- Engine cutting out while driving
- Misfire
- Difficult hot restart
- Engine stalls after warming up
- Irregular ignition operation
These symptoms can also be caused by other ignition, fuel, sensor, wiring, or electrical components.
Proper diagnosis is strongly recommended before replacing the module.
CONDITION
Used Genuine OEM Mercedes-Benz / Siemens Part
This is an original used component and may show normal cosmetic wear, scratches, oxidation, discoloration, or marks consistent with age, storage, and previous installation.
Please review all product photographs carefully before purchasing.
You will receive the actual part shown in the photographs unless otherwise specifically stated in the listing.
Oz’s Garage specializes in genuine used, discontinued, hard-to-find, and classic-car OEM components.
IMPORTANT FITMENT INFORMATION
PART NUMBER MATCHING IS REQUIRED
Do not purchase this module based only on vehicle year, model, or engine.
Mercedes-Benz used multiple ignition control modules within the same model ranges.
Please compare the number on your original module with:
Mercedes-Benz: 0125458532
OEM: A0125458532
Siemens: 5WK6 405
If your original part number is different, please contact us before ordering with your:
- VIN
- Vehicle model
- Model year
- Engine
- Original module part number
This helps avoid incorrect fitment.
OEM / REFERENCE NUMBERS
Primary OEM Number
A0125458532
0125458532
Siemens Number
5WK6 405
5WK6405
Reference/supersession families found in Mercedes-Benz M119 EZL applications can include:
- A0135456432
- A0145454232
- A0145454332
- A0155456132
- A0155456232
Important: These reference numbers should not automatically be assumed interchangeable with every vehicle.
Production date, engine calibration, market, and vehicle configuration should be verified before substituting a different EZL module.
WARRANTY
Covered by the Oz’s Garage 30-Day Replacement Warranty.
Because this is a used classic-car electronic component, professional diagnosis and installation are strongly recommended.
Installed, modified, opened, altered, tampered-with, or electrically damaged components may not qualify for return or warranty coverage.
Please review the complete Oz’s Garage warranty and return policy before purchasing.
SHIPPING
Your order will be carefully packaged to help protect this electronic module during transportation.
Usually ships within 1–2 business days.
Worldwide shipping available.
Tracking information will be provided when available after shipment.
International buyers are responsible for any applicable customs duties, taxes, brokerage charges, or import fees imposed by their country.
Delivery times for international shipments may vary depending on destination and customs processing.
WHY BUY FROM OZ’S GARAGE?
- Genuine OEM classic-car parts
- Hard-to-find and discontinued components
- Carefully inspected used parts
- Fast handling
- Usually ships within 1–2 business days
- Worldwide shipping available
- 30-Day Replacement Warranty
- Specialist in classic European automotive parts
