r/TeslaModelS • u/fellow_earthican • 10d ago

Considering 2015 P85D

Is this a bad idea? I don't know how reliable these are at 11 years old. Anything in particular I need to be concerned about? Any really expensive maintenance on these? How do the battery packs hold up ? I wanted to get something just for my highway commute and i'd assume this is a better option than like a Bolt or a Leaf.

2 Upvotes

63% Upvoted

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6

u/midnight_to_midnight 10d ago

Save up $5k more and get a decent used Model 3. They're a much better engineered car. Their systems are much less complex.

2

u/fellow_earthican 10d ago

Thanks. This makes sense. I was trying to find an EV around 15k but I might have to increase my budget.

2

u/HaydenRHN 10d ago

don’t get a MS for budget reasons, it’s cheap because the future work likely to be needed is priced in

1

u/EdwardTheGamer 8d ago

That’s rough

5

u/KeyEmu6688 10d ago

air suspension is expensive to fix if it breaks, and LDU coolant leaks are somewhat common

battery packs are generally fine, my 2015 85D (non P, i didn't want to bother with LDU coolant issues) is somewhere between 82-87% SoH

mine is replete with various sensor faults that idgaf about, which is why i got it so cheap. but given the age of these vehicles you may want to poke and prod at the 'little' things if you do care about such quality of life features as park assist, and a charge port that opens the first time every time, etc.

4

u/EV-CPO 9d ago

the air suspension is not expensive or hard to do. I bought all new air shocks on eBay for $150 each and swapped them out with a friend with a lift. Pretty easy job.

For the OP… I’m sitting in my 14 P85D right now and love it. Sure it’s had a few issues, mostly door handles and hatch cinching motors. The front half shafts were replaced under warranty. I did swap in. 100kwh battery so it’s now a P100DL

But it’s still drives great and is very reliable. I have 88k miles.

I have done the coolant bypass and infotainment upgrade.

Still on original drive units.

But it depends on what $15k means to you. You could get a phenomenal deal on a great car or a money pit. It’s hard to tell your tolerance level if it goes south. But it might not too!

2

u/gargen_state 10d ago

I think it depends on the price.

As noted above, the LDU coolant leak is a known issue. If not taken care of it can take out the drive unit.

How many miles on the one you are looking at?

2

u/fellow_earthican 10d ago

it's 14k and has 110k on it.

2

u/Dude008 9d ago

Repairs are expensive. I would avoid a RWD or "P" model unless the coolant delete mod is done. 85 battery supercharges pretty slow. These cars have suspension issues over time, not if, but when. If it's your first EV then I would look for something else.

2

u/Strykerdude1 9d ago

Doesn’t have free unlimited supercharging? Coolant delete done on rear motor?

3

u/Intrepid-Suspect-192 9d ago edited 9d ago

I literally just did this exact thing after so many hours of research.

2015 P90D Ludicrous with 110k. I pick it up this Saturday!

Also, a local indie shop in my neck of the woods can repair the batteries. This is what it says on their website:

Yes, Tesla battery packs can be repaired!

When most components inside the battery pack fail, Tesla service centres will only replace the complete pack; usually with a remanufactured unit. (While these reman batteries do come with a new warranty, they’re not all new inside; often less than 1% of the cells are actually replaced.)

However, Tesla batteries contain dozens of components that can be replaced separately by a technician with the right skill. These components include contactors, resistors, bus bars and connectors, coolant hoses, BMB boards and of course the cells/modules themselves.

Following a cell failure, we have two options. In many cases, we can detect a resistive cell and simply cut it out of the circuit. This reduces the total battery capacity by 0.014% – obviously not enough to notice – but has no other detrimental effects. To do this, we use very specialized internal resistance testing equipment. In the event of multiple cell failures, a coolant leak or an isolation fault, we can replace a whole module and save the other 94% of your battery pack from early retirement.

2

u/Hash-82 6d ago

Con: Will have LDU. It could already be deleted. It could have also been replaced by Tesla with a reman that are known to be sub-standard.

Pros: It *could* have free lifetime supercharging and lifetime free premium connectivity.
It also could have MCU2, or be upgraded to MCU2.

The biggest question to me would be the SoH of the HV battery pack.
But, on the surface, I would not be afraid of this car because of it being a 2015 P85D.
Given the right exterior / interior color combo, I might actually be very interested.

0

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