How To Change Differential Oil

5.0/5 rating (1 votes)
  • Difficulty: Moderate
  • Avg. Time Necessary: 1-2 Hours
  • Cost: ~ $20

Procedure

Hi all, You’ll find here below some infos concerning the front differential oil change on my 993 4S First remove the front plastic panel under the car. When it’s done , this is the view you’ll have:

Image:Front_differential-2.jpg

The fill plug is on the differential’s right side :

Image:Front_differential-5.jpg

Image:Front_differential-6.jpg

Now you’ll need an Allen hex 10mm. The plugs are very tight if the job has never been done before, and the access to the fill plug is quite limited. This why it is highly recommended to remove the fill plug first. In other words, don’t drain the differential before you’re sure you’ll be able to refill it with the new oil! I was able to insert the allen hex without difficulties into the fill plug. But the proximity of the right power axle made it impossible to use the socket. This how I did to have enough force to break the plug:

Image:Front_differential-9.jpg

Fortunately, the plugs had already been fitted with a washer! Then before opening the drain plug, be prepared to recover around 1 liter oil. Here are the plugs. You’ll notice that the magnetic plug had captured some metallic “dust”:

Image:Front_differential-7.jpg

Put the plugs back in place with a new washer.

Refill with 75W-90 syn GL-5. As I said the access is quite limited, and not to spill oil all over the steering, I used a large syringe graciously given by my neighbor who’s a nurse.

Not difficult if the plugs come the easy way. Have fun


Did you like this guide? Support the original creator by clicking the "Original Article" link at the top of the page.

Did we miss anything or post dead links? Let us know at apidaonline@gmail.com.

Also, Support us by bookmarking the Amazon.com link below and using it before you buy anything. It costs you nothing extra, and it lets us keep producing free content for car people everywhere.

 

Thanks for your support!

 

 

 

All auto modifications and repairs listed at APiDAOnline.com are to be done at your risk. APiDAOnline.com does not, at any point, assume responsibility of any injury, damage, or charges that may occur through modifying or repair of your or anyone else's car. Car modifications are to be done at your discretion and should be done by qualified individuals. Please check your motor vehicle regulations regarding any car modifications or car tuning you may do to ensure they are street legal.