Repairing corrosion on a Tesla Mannequin S after the battery guarantee has expired

I contacted the Montreal-area restore store that ready your automotive’s analysis, VE Mtl on 4th Avenue. In line with Michael Tempone, director of the service division, the harm is a consequence of water infiltration that creates issues after seven or eight winters or 150,000 km. Tempone says that on the Mannequin S, the situation of the air conditioner drain permits condensation to drip onto the battery case, which is a contributing issue. The weak point is compounded by salt and slush on winter roads in japanese North America, creating ripe situations for underbody corrosion.

The restore entails checking elements, changing or cleansing corroded elements, and defending the battery case with a better-quality sealer. VE Mtl’s estimate to restore your automobile is within the vary of $4,000 to $5,000. If water harm has impacted modules contained in the battery case, the price can climb to $8,000.

Tempone recommends that Mannequin S and X homeowners who intend to maintain their automobiles for the lengthy haul carry out a whole battery reseal earlier than the eight-year manufacturing facility guarantee on the batteries expires. The price of the service is about $3,500, assuming inner elements haven’t sustained harm, and it ought to present corrosion resistance for the remaining lifetime of a automobile operated in a high-corrosion surroundings.

Fixing a corroded Mannequin S or X battery

Listed below are the steps an aftermarket restore store specializing in battery restore takes to diagnose and repair the corrosion on a Tesla Mannequin S or X battery pack:

  1. Disconnect the battery from the automobile’s electrical system and take away the battery case from its mounting location.
  2. Examine the battery case and modules to determine the areas of corrosion and decide the extent of the harm.
  3. Change broken elements. This will contain sourcing elements just like the umbrella valves, BMS motherboard and seals from a third-party provider or a donor battery pack, or shopping for new substitute elements from Tesla.
  4. Take away corrosion from the battery case and restore the floor of the case utilizing a specialised answer.
  5. Apply a protecting coating to forestall future corrosion. Apply a sealant that’s superior to the safety utilized on the manufacturing facility.
  6. Reinstall the battery pack and reconnect it to {the electrical} system.

Corroded EV battery packs: not only a Tesla drawback

Tesla shouldn’t be the one electrical automobile (EV) producer experiencing points with water infiltration or corrosion harm to battery modules or their circuitry. The Car Safety Affiliation (APA) has acquired complaints on the Nissan Leaf as lately because the 2018 mannequin 12 months, and the Ford Focus EV, amongst others. And Toyota is presently the topic of a category motion lawsuit over corrosion of the wiring connection to the rear motor on a number of of its hybrid fashions.

Side view of a Tesla Model S sedan on a driveway
The reader’s Tesla Mannequin S

At the moment, only a few aftermarket outlets are able to offering the cheaper workarounds the producers ought to have developed for his or her dealerships. Tempone says that the steps concerned in repairing a corroded battery pack range relying on the extent of the harm and the methods utilized by the aftermarket store.

To the APA’s information, Tesla doesn’t carry out this form of work, preferring to switch all the battery pack after corrosion harm has degraded its efficiency or rendered the automobile inoperable.

Your rights after the producer’s guarantee is over

In Quebec, the automaker doesn’t have the final phrase on guarantee protection. The province’s Client Safety Act supplies the next warranties, that are obligatory and can’t be restricted by the automaker. These “authorized warranties” apply mechanically, whether or not or not they seem within the automaker’s documentation:

Part 37: Items … should be match for the needs for which items of that sort are ordinarily used. 

Part 38: Items … should be sturdy in regular use for an affordable size of time …

Part 53: A client who has entered right into a contract with a service provider is entitled to train immediately in opposition to the service provider or the producer a recourse primarily based on a latent defect within the items forming the article of the contract, until the patron may have found the defect by an abnormal examination.

The identical rule applies the place there’s a lack of directions mandatory for the safety of the consumer in opposition to a threat or hazard of which he would in any other case be unaware.

The service provider or the producer shall not plead that he was unaware of the defect or lack of directions. The rights of motion in opposition to the producer could also be exercised by any client who’s a subsequent purchaser of the products.

A “drip-drip-drip” water infiltration ensuing from a poorly positioned AC drain doubtless constitutes a hidden defect beneath the Client Safety Act.

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