Tesla Model S repairs from our workshop
Every Model S job in our Workshop Diary: what came in, what we found and how we fixed it.
· 3 min read
Tesla Model S isolation fault: tracing an intermittent problem to the battery heater
A Model S showed "Vehicle may not restart" at a Supercharger, with isolation and fast-charge contactor alerts. The heater passed its thermal test, but the journey logs and an insulation test found the real fault, and the contactors did not need replacing.
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· 4 min read
Tesla Model S P100D AC and thermal system overhaul: why a regas is never the whole answer
A P100D came in with radiator shutter alerts and weak air conditioning, despite a recent regas. A high-pressure nitrogen test found leaks a vacuum test had missed. Here is the full overhaul, and why we now test every AC system under pressure.
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· 2 min read
Tesla Model S 85D to 100kWh battery upgrade: more range, faster charging, free Supercharging kept
Our own low-mileage SC01 Model S 85D has had its original 85kWh battery replaced with a 2023-spec 100kWh pack. Here is what the upgrade brings, and why the car keeps its free Supercharging.
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· 2 min read
A complicated Tesla Model S coolant delete: solving seized high-voltage cables
A 2017 rear-wheel-drive Model S had coolant in its large drive unit. The coolant delete turned complicated when the motor's high-voltage cables were seized. Here is how we found the room to work and saved the drive unit.
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· 2 min read
Tesla parts available: a Model X 100D and a Model S 85D donor car
We have a Tesla Model X 100D and a Model S 85D in stock as donor cars. Here is what is available, what is not, and how to ask for a part.
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· 2 min read
Tesla Model S 85 emergency coolant leak: when the real fault is a previous battery refit
A Model S 85 came in with coolant pouring from the battery's rapid mate connector. The leak was only the symptom. The real problem was how the battery pack had been refitted after a repair elsewhere.
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· 2 min read
Tesla Model S HV battery heater replacement: fixed the same day
A Model S came in with a high-voltage battery heater fault. It was still driveable, but faults like this escalate quickly. With genuine Tesla heaters in stock, we replaced it and had the car back on the road the same day.
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· 2 min read
Tesla Model S 75D ABS and ESP repair, part 2: putting it right
The Model S 75D with ABS and ESP faults and no regenerative braking is back, with its parts in. Here is the repair, including the hidden extra work behind the original front control arm bolts.
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· 1 min read
Our Model S P100D rebuild project, part 1: the car has arrived
We bought a lightly damaged Tesla Model S P100D at auction, and it has just been delivered. This is the start of a step-by-step rebuild series showing what it really takes to rebuild a Tesla properly.
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