Pagoda SL Group

W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: LA280SL on March 25, 2024, 20:26:52

Title: Copper Washers for ATM Cooler Hollow Bolt
Post by: LA280SL on March 25, 2024, 20:26:52

I recently replaced the ATM fluid pan gasket and removed the hollow bolt and two copper washers that connect the hard line from the transmission cooler.

To reinstall this hollow bolt (located between the converter and fluid pan), should I replace the copper washers or use existing washers?  If not, would it be wise to first apply a sealant to the surfaces of existing copper washers? 

I appreciate the feedback.

Title: Re: Copper Washers for ATM Cooler Hollow Bolt
Post by: LA280SL on March 25, 2024, 21:48:25

Here is a photo of the bolt and washers.

Title: Re: Copper Washers for ATM Cooler Hollow Bolt
Post by: Pawel66 on March 25, 2024, 22:46:58

Replace.

Title: Re: Copper Washers for ATM Cooler Hollow Bolt
Post by: LA280SL on March 26, 2024, 03:36:35

Thanks Pawel.  Will do. 

Title: Re: Copper Washers for ATM Cooler Hollow Bolt
Post by: Benz Dr. on March 26, 2024, 04:13:03

Use aluminum seals which are softer and seal better.

Title: Re: Copper Washers for ATM Cooler Hollow Bolt
Post by: Pawel66 on March 26, 2024, 06:30:44

They are available from Mercedes for peanuts, but then sometimes you get copper, sometimes aluminium.

In any hardware store you should be able to get proper diameter aluminium ones.