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Tesla Model S Drive Unit Replacement by the Numbers

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During my early days of researching the Tesla Model S, I had concerns about a number of things that were emerging in the press. Fires, Model S drive unit issues, and handling in the snow. Tesla quickly addressed the “firegate” issue by retrofitting the Model S with a titanium shield. My concerns around winter driving, in particular handling in the snow, also became a non-issue after watching several winter driving videos put together by Bjørn Nyland.

Within no time, I became a new Model S owner and quickly learned that driving in the winter could actually be quite fun with a good set of winter tires. Tesla later introduced the all-wheel drive “D” models putting to rest any remaining doubt that the Model S could be the best and safest handling car in the world.

But one question still remains for me, Has Tesla dealt with the Drive Unit issues?

Model S Drive Unit Replacement by the Numbers

There is a group of Model S owners across the forums, but also validated by major publications such as Edmunds, that have had one or more drive unit replacements.

Early reports of drive unit issues ranged from total failures that left the Model S inoperable, to more recent complaints of clunking and milling noises. Elon has said in the past that many of these pre-emptive drive unit replacements were unnecessary and a simple $0.50 shim was all that was really needed, yet Tesla Service centers have been proactively replacing drive units.

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The following polls from TMC show that a majority of Model S owners have had their drive units replaced.

Drive Unit Poll

While the poll only represents a small sample of Model S owners, one might draw significance in the numbers as the density circles around owners needing a drive unit replacement at relatively low mileage, and without any harsh driving prior to failure.

The polls also give insight to the motive behind each drive unit replacement.

Non replaced DUs

DU replacements by build date

 

Though it appears the issues mainly center around earlier versions of the Model S, there’s been reports of newer Model S with Autopilot hardware hearing milling noises coming from the drive unit. One viewer described the sound as “sawing wood”.

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Tesla’s Response to Drive Unit Issues

In typical Tesla fashion, the company acted fast to address the issues, and curb concerns by offering an unlimited mile/8 year warranty on the drive unit. I think this was a great response by Tesla which put to rest any concerns about the quality and long term durability of their drive units.

Elon is now talking about building a power train that will last a million miles and I believe Tesla continues to put significant energy into improving the drive units. Tesla continues to honor the warranty and is proactively replacing drive units that show early signs of problems.

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Tesla-Drive-Unit

 

My Experience

After 12 months of Model S ownership and 30k miles drive, I started hearing a humming noise from the rear of my Model S during highway cruising. The noise was unusual as I had gotten used to hearing only the noise of the tires and wind, but there was a new noise only noticeable when cruising or decelerating with regeneration at 65 MPH and over. The noise continued to become more audible over the next few months, but I learned to live with it and did not contact Tesla. My personal rule of thumb on noise related issues is to wait for passengers to comment on it first. It’s my self crazy check.

Two months after the original drive unit humming noises began, a higher pitched milling type noise started occuring when traveling at speeds of 20 MPH or less. The sound varied depending on how much power was being used. That’s when I reached out to Tesla.

Drive unit details

Tesla service record

 

Tesla service had me come in for a test drive which they can do on demand without you needing to wait. We drove about a block before the Tesla service technician said the drive unit needed to be replaced.

The explanation was that tolerances inside the drive unit have led to metal particles getting into the fluid around the drive unit, and as the concentration of particles increased, it caused the noise from the drive unit to become louder when under load. The new drive units evidently have better tolerances and are less prone to having metal particles being shaved off.

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At that time, Tesla service has been very backed up here in Massachusetts so my appointment for the drive unit replacement was scheduled six weeks out. I put on another 4,000 miles during that wait time, with an increasingly louder drive unit, before it was finally replaced.

When Tesla replaces a drive unit, they replace both the drive unit and inverter as you can see from a copy of the parts list. The last letter in the drive unit part number (“M” in my case) seems to indicate the generation of the drive unit. The later the letter the better, with the “Q”s seeming to have the best longevity according to the forums.

I’m happy to say that I’ve logged 8,000 miles of happy and noise-free driving after my drive unit replacement. The replacement was done recently so my guess is that I have a newer unit, and thus hope this will be my only replacement.

Thankfully for all of us, Tesla has a first class warranty and level of service. While it goes without saying that inconveniences such as this may happen, rest assured that Tesla has you covered and will always strive to make things right.

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"Rob's passion is technology and gadgets. An engineer by profession and an executive and founder at several high tech startups Rob has a unique view on technology and some strong opinions. When he's not writing about Tesla

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Tesla stores continue to face anti-Musk protests

Scenes from a protest outside of Tesla’s store in Loveland, Colorado.

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Tesla stores have been the target of widespread protests and vandalism in recent weeks, after Elon Musk made a controversial gesture in January, and as he and the Trump administration’s newly created government efficiency division continues to gut federal agencies.

On Saturday, I went to the Tesla store in Loveland, Colorado, where demonstrators were already protesting upon my arrival at roughly 12:45 p.m. MT.  Walking up to the protest, I could see scattered groups of demonstrators lined up along about two blocks, spanning from the Tesla store to a nearby intersection and Sprouts location. One protestor said he had counted about 230 people at around 1:00 p.m. MT.

The protest felt generally peaceful, with cars driving by and honking, and demonstrators leaving a large space between the front of the Tesla store and the sidewalk, easily allowing workers and customers to go in and out.

You can see a few videos and photos from the site below, along with some of the responses I got from protestors and a prospective customer.

READ MORE ON TESLA PROTESTS AND VANDALISM:

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I spoke to about a dozen protestors about what they were protesting against. Most said they were there to condemn Musk’s recent federal worker and program cuts with the Trump administration, his performance of what some said resembled a Nazi salute at Trump’s inauguration ceremony in January, or the administration’s recent attacks against transgender and queer individuals.

One protestor, Elsa, identified as a former Republican and said she was “highly concerned that our Constitution is being ignored,” especially with regards to the three branches of government and the system of checks and balances.

“It surprises me that, even if you voted for Trump, or you believe in capitalism, which, I didn’t vote for Trump, but I do believe in capitalism — I’m a former Republican, I was a Republican for most of my life — but it’s dangerous to have power rest in a handful of ultra-wealthy people,” Elsa said.

“And our whole country needs to realize that,” she adds. “This to me is not even Republican or Democrat at this point.”

Instead, she says it now comes down to whether people want to give billionaires huge tax breaks, or to use that money to support a range of groups in the U.S., including those who have social security benefits, are veterans, or are 9/11 survivors seeking cancer treatments, as a few examples.

Another protestor, Mary, said she was taking part in the demonstration “because she loves this country and democracy,” adding that she wanted to help preserve democracy for her grandchildren.

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Still another protestor, Bryan, said that they were protesting because of the Trump administration and Musk’s attempts to erase transgender, non-binary, and queer people from history, drawing comparisons to the rise of fascism in Nazi Germany, where early human rights violations were lodged against gay and queer communities.

“I’m here because I have to be,” Brian said. “I’m afraid of the future.”

Yet another person and his family were holding Ukraine flags, saying that they were protesting for a wide range of reasons, but especially for Trump’s recent meeting with Ukraine President Volodymyr Zelenskyy and Musk’s claims that the top Ukrainian executive was to blame for what he has called a “forever war.”

While most protestors appeared to be generally friendly, especially with each other, I did hear a few exchanges between demonstrators and those with other opinions. While I heard more cars honking throughout the experience, seemingly in support of the protests, I also noticed a few from which passengers yelled things like “Go Trump.”

“Direct action, we need to stop these fascists with direct action,” one protestor yelled in response.

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Additionally, I also talked to a prospective customer, Kristy, who was there for a test drive and said she had a negative experience with the protestors.

“I was test driving a Tesla, and as we pulled in and parked right here, this black one, these people right here in the middle yelled at me, ‘Hope you’re turning in your f*cking Nazi car,’ and I said ‘F*ck you,’” Kristy explained.

“And they’re like ‘F*ck you too, you’re a Nazi, f*cking Nazi lovers.’ And so, they’re just yelling racial slurs at me, and I’m far from a Nazi.”

Tesla store advisers declined to comment on the protests, and so did Loveland police.

Other Saturday protest footage from Tesla stores in Santa Rosa, California, and Austin, Texas

The Loveland Tesla store has also been the site of repeated attacks in recent weeks, with authorities on Friday making a second arrest following multiple incidents. You can see the Department’s press release for the arrest below.

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The protest was also part of widespread demonstrations on Saturday, and it’s just the latest in actions targeting Musk’s electric vehicle (EV) company, some of which have included acts of vandalism, graffiti, arson, and even the use of weapons on Tesla storefronts.

Multiple other protests were also captured in footage on Saturday, including one in Santa Rosa, California, as shared by the San Francisco Chronicle, and another attended by conspiracy theorist Alex Jones in Austin, Texas. Still another was captured in New York City, and you can see footage from each of these protests below.

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Tesla vandalism cases under investigation by FBI Seattle

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Musk sets a date for Starship trip to Mars with Optimus on board

Optimus could be the first humanoid to make it to Mars, and Musk has set a date for when he thinks it’ll happen.

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Credit: SpaceX

Elon Musk has shared when he expects to take Starship to Mars for its first uncrewed mission, and he also says Tesla’s Optimus humanoid robot will be on board for the flight.

On Friday, Musk wrote on X that SpaceX’s reusable Starship rocket will take Optimus to Mars at the end of 2026, with human landings expected to commence a few years later.

“Starship departs for Mars at the end of next year, carrying Optimus,” Musk said. “If those landings go well, then human landings may start as soon as 2029, although 2031 is more likely.”

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Last year, the SpaceX and Tesla head also expectations that SpaceX would be able to begin uncrewed launches in 2016, with early launches including both Optimus and a Cybertruck unit.

Musk also followed up the announcement with a post on X on Saturday morning, noting that he expects SpaceX to launch more than 90 percent of Earth’s payload mass to orbit this year. Meanwhile, he says China will make up just around 5 percent, while the rest of the world, including other parts of America, would also make up just 5 percent.

He also predicted that that number would go up even further to nearly 100 percent, once SpaceX’s reusable rocket is being launched more frequently.

“When Starship is launching at high rate, SpaceX will probably carry >99 percent of Earth’s payload mass to orbit. This is necessary to make Mars a self-sustaining civilization,” Musk added.

READ MORE ABOUT SPACEX’S STARSHIP: Texas awards SpaceX $17.3M grant to expand Bastrop tech hub

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To be sure, Musk has been known to make ambitious claims about when his companies’ products would achieve certain milestones. For example, Musk predicted in 2018 that SpaceX could launch a rocket to Mars with humans aboard by 2024, though SpaceX only began testing the company’s reusable Starship in 2023.

Still, the company has been routinely testing Starship since then, and with increasing frequency, and in October, SpaceX performed the first catch of the Starship’s Super Heavy booster after liftoff to demonstrate the concept that a reusable rocket could be possible. In a launch earlier this month, SpaceX again successfully caught the Super Heavy Booster, though it lost the upper stage to a “rapid unscheduled disassembly,” effectively meaning that it had exploded in air and showered surrounding areas with rocket parts.

The explosion was the second consecutive launch in which debris from Starship reigned down, highlighting the continued importance of testing as SpaceX aims to make the rocket a viable product for reusable space travel.

On Friday, SpaceX also launched its Starliner spacecraft to the International Space Station (ISS) to rescue astronauts that have been stuck on the orbital craft, after a Boeing launch was originally intended to bring them back to Earth. While SpaceX attempted to rescue the two astronauts in September, issues with the Starliner craft’s thrusters discovered upon arrival made NASA hold off on approving the return mission.

SpaceX completes a new first with recent Falcon 9 launch

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U.S. AG Pam Bondi: Tesla Molotov attack suspect facing up to 20 years in prison

The U.S. Attorney General confirmed that a Tesla attacker, who threw Molotov cocktails at a store, is now facing up to 20 years in prison.

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The White House, Public domain, via Wikimedia Commons
President Donald J. Trump purchases a Tesla on the South Lawn, Tuesday, March 11, 2025. (Official White House Photo by Molly Riley)

It appears that an anti-Tesla activist who is suspected of throwing Molotov cocktails at one of the electric vehicle maker’s stores is now looking at a potentially long prison sentence. 

This is, at least, as per United States Attorney General Pam Bondi, who recently shared her insights in a FOX News segment.

Tesla Attacks and Trump Warning

Tesla locations and vehicles have been subjected to numerous attacks as of late, from stores being shot up to vehicles being vandalized and set on fire in suspected arson incidents. In one case, a Tesla store in Salem, Oregon, was attacked with Molotov cocktails.

President Donald Trump has issued a stern warning to people attacking Teslas, stating that he considers such actions as domestic terrorism. While addressing the issue, Trump warned that anyone caught deliberately harming Tesla will be going through “hell.”

Attorney General’s Update

During a recent FOX News segment, US Attorney General Pam Bondi reiterated that anyone targeting others over political beliefs would be caught and punished accordingly. She highlighted that investigations are underway to find out who is behind the violent actions, and she also confirmed that a Tesla attacker, who threw Molotov cocktails at a store, is now facing up to 20 years in prison.

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“If you targeted someone, if you went after someone because of their political affiliation, we will be investigating you. We will be looking at you, because that’s the weaponization, and it has to stop. For instance, look what they’re continuing to do to Elon Musk. They are targeting Tesla dealerships, the stations where you charge a Tesla. They’re vandalizing cars. I have already directed an investigation be opened to see how this is being funded. Who is behind this? 

“We have people we’re locking up on that. We have someone in jail right now from one of the dealerships. They threw a Molotov cocktail through a dealership. They’re looking at up to 20 years in prison. So, if you’re going to touch a Tesla, go to a dealership, or do anything, you better watch out, because we’re coming after you. And if you’re funding this, we’re coming after you. We’re going to find out who you are,” Bondi stated.

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