Porsche 2003 C4 battery hold down bolt won't come out.

5

Asked by Mar 05, 2016 at 05:16 PM about the 2003 Porsche 911 Carrera 4 AWD Convertible

Question type: Maintenance & Repair

I bought a new battery, but can't get the old one out. The hold down bolt was
loosened and moves about freely, but won't screw out completely, and the
clamp is loose also. It feels like the nut is not attached to the battery tray
that it sits in and turns around without coming loose when I turn the bolt.

5 Answers

1,685

Try spraying a lot of penetrating fluid eg Liquid Wrench on it and leaving it a few hours. Then pull the nut up to the battery tray and try to lock it in place with the force on the battery tray as you undo the bolt. If that doesn't work, can you get thin pliers to the nut? Failing that, you will likely need to cut the bolt off with a dremel or similar.

525

Where did you purchase the battery? Auto Zone or O'Rileys, install for free. And, probably are use to seeing your problem on a daily basis. Let us know how you did. Good luck.

1,720

Using a small pry bar under the head of the bolt while exerting upward pressure on the bolt head, use a 6 point socket with extension if necessary, and then turn the bolt counter clockwise. Keep the strong upward pressure on the underside of the bolt. This almost always works. Good luck!

5

I finally got the old battery out. It was bought from and installed by a local Mobil station. Turns out that they ordered the wrong battery for my Porsche and decided to cram it into the car. It was too long by 1.5" so the hold down was relocated to a hole outside the normal, with a simple nut and bolt. I had to remove the plastic cover on the passenger side of the battery in order to get a wrench on the nut. The new battery is the proper size and fits easily into the intended position. Thanks for all the help.

1,720

As usual, it's do it yourself if you want it done right. You've got a Porsche, never trust it to any shop that doesn't specialize in them. I wonder how many batteries were installed in Porsche's by that station??

Your Answer

Add photo

Related Questions

  • Porsche 2003 C4 battery hold down bolt won't come out. 5 answers

    I bought a new battery, but can't get the old one out. The hold down bolt was loosened and moves about freely, but won't screw out completely, and the clamp is loose also. It feels like the nut is n...

    2003 Porsche 911 Carrera 4 AWD Convertible

    -

    Maintenance & Repair

  • Porsche Triptonic Tranny won't shift 2 answers

    My 2004 Porsche 911 c4s triptonic seems to be stuck in second gear.Everything seemed fine on a recent drive until I came out of the shop to head home. The car would not shift. Fuel levels were all ...

    2004 Porsche 911 Carrera 4S AWD

    -

    Maintenance & Repair

  • 1979 Porsche 911 S/C runs good for about 2hrs and then dies going down the road. Why? 1 answer

    The car will fire up and run good. I can drive it home no problem, but after a couple hours of driving (give or take), it just dies. I can take it home, unplug the battery and plug it back in a litt...

    1979 Porsche 911

    -

    Maintenance & Repair

  • Did Porsche identify any tire that could installed instead of the out of production 185/70VR15 for 1984 Carrera? 3 answers

    1984 911 Carrera has as standard Porsche Rims the front tire as 185/70VR15 and rear tire 215/VR15. These tires are not longer produced, therefore I need a siutable set of tires still in production. I...

    1984 Porsche 911 Carrera

    -

    Maintenance & Repair

  • Porsche stayed in the garage 6 answers

    I found a 2007 Porsche Carrera S cabriolet which is just at 18000 km. I have been told by the car dealer, that previous owner left the car for more than two years but made sure the engine has been r...

    2007 Porsche 911 Carrera S Convertible

    -

    Maintenance & Repair

911

Looking for a Used 911 in your area?

CarGurus has 4,513 nationwide 911 listings starting at $10,500.

ZIP:

Search Porsche 911 Questions

Porsche 911 Experts

#1 Michael Kane
Michael Kane
Reputation 980
#2 Andrew Dickens
Andrew Dickens
Reputation 550
#3 tntjobs
tntjobs
Reputation 520
View All

Related Models For Sale

Used Porsche Boxster
45 Great Deals out of 1,146 listings starting at $3,920
Used Chevrolet Corvette
149 Great Deals out of 20,684 listings starting at $3,995
Used Porsche Cayenne
104 Great Deals out of 5,225 listings starting at $3,999
Used BMW M3
50 Great Deals out of 1,361 listings starting at $3,800
Used Mercedes-Benz SL-Class
45 Great Deals out of 2,814 listings starting at $4,530
Used Ford Mustang
541 Great Deals out of 45,846 listings starting at $1,999
Used BMW 3 Series
945 Great Deals out of 30,262 listings starting at $1,000
Used Chevrolet Camaro
243 Great Deals out of 31,194 listings starting at $369
Used Mercedes-Benz C-Class
425 Great Deals out of 25,479 listings starting at $2,000
Used Mercedes-Benz S-Class
139 Great Deals out of 6,604 listings starting at $2,990

Used Cars For Sale

2018 Porsche 911 For Sale
11 listings starting at $118,500
2017 Porsche 911 For Sale
4 Great Deals out of 1,437 listings starting at $79,950
2016 Porsche 911 For Sale
7 Great Deals out of 223 listings starting at $81,857
2015 Porsche 911 For Sale
7 Great Deals out of 377 listings starting at $67,498
2014 Porsche 911 For Sale
6 Great Deals out of 277 listings starting at $61,750

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.