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Model S Technical / Mechanical Issues

Theshadows

Active Member
Apr 20, 2013
1,947
221
PA
Has anyone noticed a klunking sound from the motor area when at low speed, like in a parking lot when you press lightly on the accelerator? The sound reminds me of a sloppy universal joint on the driveshaft of an ICE.
 

mknox

Well-Known Member
Aug 7, 2012
10,103
1,867
Toronto, ON
Anyone know what this is: About one time in ten when I'm getting out of the car, it will start to "chime" in sets of three "bongs" for maybe 30 seconds. This isn't the rapid three bongs you get when an alert comes up on the dash, but slower and makes me think of a key-in-ignition or headlights on reminder. There's no message of any sort on the screen, and it does stop on it's own. I'm curious to know what the car is trying to tell me. :confused:
 

scaesare

Well-Known Member
Mar 14, 2013
8,280
13,364
NoVA
Anyone know what this is: About one time in ten when I'm getting out of the car, it will start to "chime" in sets of three "bongs" for maybe 30 seconds. This isn't the rapid three bongs you get when an alert comes up on the dash, but slower and makes me think of a key-in-ignition or headlights on reminder. There's no message of any sort on the screen, and it does stop on it's own. I'm curious to know what the car is trying to tell me. :confused:

In a few different threads it's been surmised this is accidental touching of the brake pedal when getting in tothe car and thus the door is still open.

It's happened to me on a number of occasions, and I'm not convinced I touched the pedal, but I've yet to hear another plausible cause...
 

mknox

Well-Known Member
Aug 7, 2012
10,103
1,867
Toronto, ON
In a few different threads it's been surmised this is accidental touching of the brake pedal when getting in tothe car and thus the door is still open.

I'm pretty sure that's not it because it usually starts when I'm half way out of the car. I'll certainly pay attention to it, however.

- - - Updated - - -

I believe that's been narrowed down to the FOB in your pocket being "clicked" to lock by accident .... with the door open.

This could be more likely it. I might be pressing it as I swing my legs out of the car.

It is a "different" sounding alert which is what made me wonder. With most messages and alerts, there is a rapid "bing-bing-bing" sound, but this is more like the old key-in-ignition chime some ICE cars will give,
 

ibcs

Member
Jan 31, 2010
769
201
Ohio
Has anyone noticed a klunking sound from the motor area when at low speed, like in a parking lot when you press lightly on the accelerator? The sound reminds me of a sloppy universal joint on the driveshaft of an ICE.

I had that issue when the tire sensor broke loose in tire causing a noise at low speed.
 

DCWitt

Member
Nov 23, 2012
173
8
Watseka, IL
Has anyone noticed a klunking sound from the motor area when at low speed, like in a parking lot when you press lightly on the accelerator? The sound reminds me of a sloppy universal joint on the driveshaft of an ICE.

I had this and it required an entire new drive unit (motor and inverter), which was installed quickly by Chicago service center.
 

Super Gizmo

Member
Apr 16, 2012
183
27
San Rafael CA
I have a P85 VIN:1586 bought in 11/2012. I have close to 16K miles on the car. I live in the Bay Area where the temp today is approximately 70. Last night I did a range charge for only the 4th time since owning the car and I was shocked to see that the Rated Miles on a full charge are only 246. I never let the battery get down below 100- 140 miles. I only used the Superchargers on the way back from LA last year on I-5 because the ones on 101 were not active at the time. When I Supercharged on that trip, I only charged to 90% or less. My car is usually charged to 170-180 miles for daily use. My 90% Rated charge is down to 212. I have been doing all the right things espoused by Tesla - like leaving the car plugged in most of the time so I am very disappointed to see the loss in range. My life time Wh per mile is 316.
I feel this is unacceptable. I have taken care of the car and bought 8 year extended warranty and maintenance plans, had the car serviced on time. I don't hod rod or race the car because I have a bad back and have had neck surgery. I think it is time to get in touch with the higher ups in Tesla and find out what the hell is going on here. This is very upsetting to say the least.
 

nlc

Member
Jul 1, 2013
657
25
Nantes, France
Maybe try to completely empty your battery, and try a new charge to 100%

- - - Updated - - -

I checked, 246 miles is 396Km, in rated range it's totaly normal !? We have the same value here in Europe with new car !
 

ch_model_s

Member
Feb 4, 2013
27
4
east switzerland
the EU cars calculate the range diffeent. EU ideal miles are more like US rated miles! supergizmo you see just a wrong calculation from the bad tesla range guessing algoritems and not a real degration. don't panic
 

napabill

Active Member
Apr 30, 2009
1,508
280
Napa, California, United States
I have a P85 VIN:1586 bought in 11/2012. I have close to 16K miles on the car. I live in the Bay Area where the temp today is approximately 70. Last night I did a range charge for only the 4th time since owning the car and I was shocked to see that the Rated Miles on a full charge are only 246. I never let the battery get down below 100- 140 miles. I only used the Superchargers on the way back from LA last year on I-5 because the ones on 101 were not active at the time. When I Supercharged on that trip, I only charged to 90% or less. My car is usually charged to 170-180 miles for daily use. My 90% Rated charge is down to 212. I have been doing all the right things espoused by Tesla - like leaving the car plugged in most of the time so I am very disappointed to see the loss in range. My life time Wh per mile is 316.
I feel this is unacceptable. I have taken care of the car and bought 8 year extended warranty and maintenance plans, had the car serviced on time. I don't hod rod or race the car because I have a bad back and have had neck surgery. I think it is time to get in touch with the higher ups in Tesla and find out what the hell is going on here. This is very upsetting to say the least.

Welcome to my world! (vin #1571, 17,000 miles)
 

Dave EV

Active Member
Jun 23, 2009
1,700
1,156
San Diego
My car is usually charged to 170-180 miles for daily use.
You car and battery are very likely fine, don't worry about it.

Cars charged to less than 90% regularly and rarely range-charged are more likely to drift out of balance as it's harder to balance a pack when it's not near full or full.
 

Mario Kadastik

Active Member
Sep 5, 2013
2,189
1,396
Rae, Harjumaa, Estonia
You car and battery are very likely fine, don't worry about it.

Cars charged to less than 90% regularly and rarely range-charged are more likely to drift out of balance as it's harder to balance a pack when it's not near full or full.

Yes that's what I've understood as well. The basic only way to test this is to drive it to low charge, charge to 100% (and let it sit until it finishes the charge itself) and repeat it soon after going again to 0 and then charge to 100%. With a couple of cycles you should see the range creeping back, but you won't see it on the first cycle as I understood so it has to be at least 2-3 cycles to start seeing the improvement. I think someone was told by Tesla to do it preferably in winter and range charge many times in row to let the pack balance and he was back to almost no degradation after a couple of weeks (and had 40k miles on it?). There is a thread under Battery and Charging here somewhere.
 

JRP3

Hyperactive Member
Aug 20, 2007
19,799
44,456
Central New York
I'm not sure there is any good reason to drive it to or near to 0 to balance the pack. Lithium has no memory effect and the balancing takes place near the end of charge, assuming they are top balancing the cells. Leaving it plugged in for extended periods after range charging should do the trick.
 

jerry33

(S85-3/2/13 traded in) X LR: F2611##-3/27/20
Mar 8, 2012
19,631
22,277
Texas
I'm not sure there is any good reason to drive it to or near to 0 to balance the pack. Lithium has no memory effect and the balancing takes place near the end of charge, assuming they are top balancing the cells. Leaving it plugged in for extended periods after range charging should do the trick.

I think the idea here is to have has much "empty space" in the cells as possible so that the "sprinkler filling a number of glasses" effect reduces the difference in charge level on the way up so some of the balancing happens before the one minute remaining. This assumes a somewhat slow rate of charging.

I'm not convinced that running to zero and then going to 100% just to balance the pack is a good thing unless your pack is very badly out of balance.
 

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