Tesla Large Drive Unit Repairs
Tesla Large Drive Unit Failure
We offer a specialised repair and overhaul service for Tesla Large Drive Units (LDUs). These units are prone to failure due to coolant seal degradation, which can lead to electrical isolation faults and internal bearing noise, often described as a milling sound, which in the some cases can lead to a required replacement of the stator.
To address these common issues, we’ve developed a comprehensive LDU refurbishment process designed to restore performance and enhance reliability. To further protect the unit we carry out an operation to prevent any future coolant ingress into the system as standard.
Tesla Large Drive Unit Overhaul: What’s Included
As part of our comprehensive Tesla Large Drive Unit (LDU) repair and overhaul service, we implement a coolant delete modification to eliminate a common source of future failures. This proactive step enhances long-term reliability.
We also replace all seals and gaskets with brand-new components to ensure a secure and leak-free system. To verify integrity and safety, we conduct both a pressure test and an electrical isolation test.
To maintain optimal performance, we renew the transmission oil, ensuring smooth and efficient operation.
As part of the overhaul, we replace all critical bearings, including:
- Rotor Hybrid Bearings
- Input Shaft Hybrid Bearings
- Main Differential High-Speed Bearings
- Countershaft High-Speed Bearings
All work is backed by a 12-month warranty covering both parts and labour, giving you peace of mind and confidence in the quality of our service.
Tesla Models Affected
- RWD Model S
- Performance Dual Motor from 2014-2020
Watch the video on the left to hear the distinct ‘milling’ noise which is one of the key symptoms.
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Cecil Pashley Way
Shoreham-by-Sea
West Sussex
BN43 5FF

