Overview
The ZF 6073.017.108 TCU ERGOPOWER M/L EC4A is a critical electronic control unit designed specifically for the WG 210 series transmission. This OEM genuine part governs shift timing, clutch modulation, and diagnostic communication within the transmission assembly. Mounted directly on the valve body, the TCU interprets sensor inputs to optimize gear engagement under load. The SKU 6073.017.108 is a direct replacement for failed units, ensuring seamless integration with existing hydraulic circuits. When servicing this unit, always inspect the HOUS.FRONT SECT (4657201161) for wear, as housing misalignment can compromise TCU performance.
Symptoms of Failure
- Erratic gear shifting or delayed engagement: A failing TCU often causes harsh or unpredictable shifts, especially when the transmission is under heavy load.
- Intermittent loss of communication with diagnostic tools: The ECU may fail to transmit data, leading to fault codes that are difficult to clear.
- Unintended limp-home mode activation: The transmission may lock into a single gear to protect internal components, triggered by corrupted TCU signals.
- Oil leaks near the control unit connector: Thermal cycling can degrade the seal, allowing fluid to seep into the electrical harness.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6073.017.108 |
| 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) | 180 mm x 120 mm x 45 mm |
| Operating Voltage | 12V DC (24V compatible with adapter) |
| Connector Type | 24-pin AMP |
Compatibility
This TCU is engineered for the ZF WG 210 series, but it also functions in the WG 180 and WG 200 transmissions when used with the correct software calibration. It is not backward-compatible with older Ecomat models without a harness modification. For proper installation, ensure the 螺栓 (0636115293) securing the unit are torqued to specification, and replace the O-RING (0634313603) to prevent fluid ingress. Additionally, verify the CYLINDRICAL PIN (0631306816) alignment in the mounting bracket to avoid vibration damage.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201161 | HOUS.FRONT SECT | Front housing section for TCU mounting |
| 0636115293 | 螺栓 | Mounting bolt for TCU bracket |
| 0634313603 | O-RING | Seal for TCU connector port |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | Fastener for valve body cover |
| 4656301148 | FIXING PLATE | Retainer plate for TCU harness |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | Bolt for oil feed housing |
| 4656301047 | OIL FEED.HOUSG. | Oil supply housing for clutch pack |
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