Overview
The ZF 6073.017.109 TCU ERGOPOWER M/L EC4A is a critical electronic control unit specifically engineered for the WG210 series transmission. This OEM genuine part governs shift logic, clutch modulation, and diagnostic communication within the ERGOPOWER M/L EC4A system. Positioned externally on the transmission housing, the TCU interprets sensor data to optimize gear engagement under varying load conditions. The SKU 6073.017.109 is a direct replacement unit that restores factory performance in heavy-duty applications. When servicing this assembly, technicians often inspect the HOUS.FRONT SECT (4657201161) for structural integrity, as it interfaces directly with the TCU mounting flange.
Symptoms of Failure
- Erratic gear shifting or delayed engagement – A failing TCU can cause the WG210 to hesitate between ratios, particularly under load, leading to harsh shifts or unintended neutral conditions.
- Intermittent loss of communication with diagnostic tools – When the 6073.017.109 unit degrades, the transmission may fail to transmit data to scan tools, complicating fault tracing.
- Unexpected limp mode activation – The ERGOPOWER M/L EC4A may trigger a safety mode if the TCU misreads solenoid feedback, reducing vehicle speed to protect internal components.
- Oil contamination from internal seal failure – Although rare, a cracked TCU housing can allow transmission fluid to seep into electrical connectors, causing corrosion and intermittent faults.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6073.017.109 |
| OEM Reference | ZF ERGOPOWER M/L EC4A |
| Material | Die-cast aluminum housing with sealed electronics |
| Weight | 1.2 kg (2.65 lbs) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 45 mm |
| Operating Voltage | 12V / 24V DC |
| Connector Type | 48-pin AMP |
Compatibility
This TCU is primarily designed for the ZF WG210 series transmission, but it also fits select variants of the WG180 and WG200 families when equipped with the ERGOPOWER M/L EC4A control system. Always verify the software version against your transmission’s serial number. During installation, ensure the 螺栓 (0636115293) securing the TCU bracket are torqued to specification, and replace the O-RING (0634313603) to prevent fluid ingress. Additionally, the CYLINDRICAL PIN (0631306816) must be aligned correctly to avoid misalignment of the control module.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201161 | HOUS.FRONT SECT | Front housing section for TCU mounting |
| 0636115293 | 螺栓 | Bolt for TCU bracket fixation |
| 0634313603 | O-RING | Seal preventing fluid entry into TCU |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for TCU positioning |
| 0636100801 | CAP SCREW | Fastener for housing cover |
| 4656301148 | FIXING PLATE | Retaining plate for wiring harness |
| 4657301032 | SCREEN SHEET | Filter mesh for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Secondary filter mesh for oil return |
| 0636100803 | CAP SCREW | Bolt for valve body attachment |
| 4681301040 | OIL FEED.HOUSG. | Oil supply housing for lubrication |
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