Overview
This OEM genuine ZF 6073.017.107 TCU ERGOPOWER M/L EC4A is the electronic control unit that governs shift logic and clutch modulation for the WG210 series transmission. Mounted directly on the valve body assembly, this TCU processes input from speed sensors and throttle position to manage hydraulic pressure and gear engagement. The SKU 6073.017.107 is a direct replacement for the original factory unit, ensuring precise communication between the transmission and the vehicle’s drivetrain. When installed alongside a robust TRANSMISSION HOUSING, this TCU maintains the integrity of the entire shift system.
Symptoms of Failure
- Erratic or delayed gear engagement: The transmission hesitates or slams into gear, especially when shifting from neutral to drive or reverse.
- Intermittent limp mode activation: The system triggers a fault code and locks the transmission in a single gear, often accompanied by a warning light on the dashboard.
- Unresponsive shift commands: The TCU fails to register throttle input or manual shift requests, causing the transmission to remain in a fixed ratio regardless of driving conditions.
- Oil leaks at the TCU connector: Internal seal degradation allows transmission fluid to seep past the wiring harness gasket, leading to electrical shorts and corrosion.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number / SKU | 6073.017.107 |
| OEM Reference | ZF ERGOPOWER M/L EC4A |
| Material | Die-cast aluminum housing with sealed electronic module |
| Weight | 1.8 kg (approx.) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 55 mm |
| Operating Voltage | 12V DC / 24V DC compatible |
| Connector Type | 40-pin AMP / TE connectivity |
| Related Hardware | 0631306816 CYLINDRICAL PIN, 0636100801 CAP SCREW, 4656301148 FIXING PLATE, 4657301032 SCREEN SHEET, 4657301033 SCREEN SHEET, 0636100803 CAP SCREW |
Compatibility
This TCU is engineered for the ZF WG210 series, but it also serves as a direct fit for the WG180 and WG200 transmissions that share the same ERGOPOWER M/L EC4A architecture. The unit is compatible with both the HOUS.FRONT SECT and the HOUSING REAR PART assemblies found in these models. For complete rebuilds, pairing this TCU with the HOUSING REAR SECTION ensures proper sealing and alignment of the electronic harness.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101085 | TRANSMISSION HOUSING | Main structural casing that encloses the gear train and valve body |
| 4657201161 | HOUS.FRONT SECT | Front section of the housing that supports the input shaft and pump |
| 4657201162 | HOUSING REAR PART | Rear housing segment that contains the output shaft and speed sensors |
| 4657298107 | HOUSING REAR SECTION | Alternate rear housing variant for specific WG210 sub-models |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise housing-to-TCU mounting |
| 0636100801 | CAP SCREW | Fastener for securing the TCU bracket to the housing |
| 4656301148 | FIXING PLATE | Retaining plate that locks the TCU connector in place |
| 4657301032 | SCREEN SHEET | Fine mesh filter protecting the TCU hydraulic passages |
| 4657301033 | SCREEN SHEET | Secondary filter screen for additional debris protection |
| 0636100803 | CAP SCREW | Mounting bolt for the screen sheet assembly |
Frequently Asked Questions
Q: Can the 6073.017.107 TCU be reprogrammed for different shift patterns?
A: Yes, this unit supports factory-level flash programming via ZF diagnostic tools, but it is pre-configured for WG210 ERGOPOWER M/L EC4A parameters. Reprogramming should only be performed by a certified transmission specialist.
Q: Will a faulty TCU cause transmission fluid contamination?
A: Indirectly, yes. A failing TCU can cause harsh shifts that generate excessive clutch debris, and a cracked housing can allow fluid to mix with electrical contaminants. Always inspect the SCREEN SHEET for debris when replacing this unit.
Q: Is this part interchangeable with the older EC3A control unit?
A: No. The EC4A uses a different pinout and firmware architecture. Attempting to install an EC3A in a WG210 will result in communication faults and potential damage to the TRANSMISSION HOUSING wiring harness.
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