Description
Restore proper ignition control in your classic Mercedes-Benz with this genuine OEM Siemens EZL ignition-control module.
The EZL module controls ignition timing and coil operation using information received from the engine-management system and associated sensors. This module is calibrated for select Mercedes-Benz vehicles equipped with the 4.2L M119 V8 engine.
Product Details
- Genuine Mercedes-Benz OEM component
- Manufactured by Siemens
- Mercedes part number: 0135456332
- Formatted number: 013 545 63 32
- Complete Mercedes number: A 013 545 63 32
- Component type: EZL ignition-control module
- Also called:
- Ignition control unit
- Ignition module
- EZL module
- Ignition ECU
- Spark-control module
- Engine family: M119
- Engine displacement: 4.2L V8
- Eight-cylinder application
- Country of manufacture: Germany
- Includes only the module and components shown in the photographs
Confirmed Vehicle Applications
Mercedes-Benz W124
- 1992 Mercedes-Benz 400E
- 1993 Mercedes-Benz 400E
- Chassis: 124.034
- Select E420 applications using the identical 0135456332 module
Mercedes-Benz W140
- 1992 Mercedes-Benz 400SE
- 1993 Mercedes-Benz 400SEL
- Chassis: 140.042
- Select chassis 140.043 and S420 applications using the identical module
Mercedes-Benz catalog descriptions associate this part with the 400E, E420, and 400SE. Specialist references identify the strongest exact application as the 1992–1993 4.2L vehicles.
Compatibility must be confirmed using the complete number on the original module and the vehicle VIN.
Important 4.2L Calibration Notice
This EZL is calibrated for the 4.2L M119 V8.
Do not advertise it as a correct permanent replacement for:
- 500E
- E500
- 500SE
- 500SEL
- S500
- 500SL
- SL500
- Other 5.0L M119 applications
A 5.0L vehicle may start or run with a 4.2L EZL in an emergency, but ignition calibration differs. It should not be represented as a correct long-term interchange.
Part Numbers
- 0135456332
- 013 545 63 32
- A0135456332
- A 013 545 63 32
If your unit carries a different Mercedes or Siemens number, do not assume interchangeability based only on appearance or connector fit.
Common Failure Symptoms
A failing EZL module may cause:
- Engine cranks but does not start
- Intermittent no-start condition
- Engine stalls after warming up
- Vehicle restarts after cooling
- No spark
- Weak or inconsistent spark
- Misfiring under load
- Sudden engine shutdown
- Ignition coils do not trigger
- Difficult hot starting
Similar symptoms can also be caused by crankshaft sensors, ignition coils, distributor caps and rotors, wiring, grounds, fuel delivery, or another engine-control component. Proper diagnosis is strongly recommended.
Condition Details
This is a used genuine Mercedes-Benz electronic component. It may show normal scratches, dust, faded labeling, oxidation, thermal-compound residue, or other signs of previous installation.
Please inspect all photographs carefully. You will receive the exact item shown unless otherwise stated.
Removed from a running vehicle and tested before removal. The engine started, ran, and reached operating temperature without ignition-module-related faults.
Critical Installation Requirement
The EZL module must be correctly mounted against its factory heat sink using the proper heat-transfer compound.
Old thermal compound should be carefully removed, and a suitable fresh heat-transfer paste should be applied according to Mercedes-Benz service procedures. Operating the module without proper thermal transfer can cause overheating and permanent failure.
Professional installation is recommended.
Programming
Programming is not normally required when installing an exact-number replacement. However, the module must have the correct ignition calibration for the engine and vehicle.
Buyer Verification
Before ordering, compare:
- Complete Mercedes-Benz number
- Siemens manufacturer number, if visible
- Connector arrangement
- Housing and mounting points
- Number of cylinders
- Engine displacement
- Vehicle VIN and production date
If unsure, send Oz’s Garage the VIN and clear photographs of the original module’s identification label and connectors.
Warranty
Covered by Oz’s Garage’s 30-day replacement warranty.
The warranty provides a replacement when available. International claims are handled through replacement or store credit according to Oz’s Garage policy.
The warranty does not cover:
- Incorrectly ordered modules
- Installation or diagnostic labor
- Installation on a 5.0L application
- Overheating caused by missing or incorrect thermal compound
- Damage from faulty coils, wiring, grounds, or charging voltage
- Water or moisture damage
- Opened or internally repaired modules
- Modified, altered, or disassembled electronics
Installed, opened, modified, or altered electronic components are not returnable.
Shipping
- Free shipping within the continental United States
- Worldwide shipping available
- Carefully packaged to protect the housing, pins, and connectors
- International customers are responsible for applicable customs duties and import taxes
- Usually Ships 1 / 2 Business Days
