Help! With rear window seal and seal channel rust - PeachParts Mercedes-Benz Forum

DeliveryValve · #1 09-17-2015, 11:47 AM

Quote:

Originally Posted by leathermang

He may have been required to do that. Some cars are engineered to where the glass is part of the strength in a roll over.... and good contact between the glass and the seal...and the seal and the car is required........

It could be true, but I am going to side on the fact that they are covering their arse to make sure they don't have to come back for a redo.

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leathermang · #2 09-17-2015, 03:31 PM

Quote:

Originally Posted by DeliveryValve

It could be true, but I am going to side on the fact that they are covering their arse to make sure they don't have to come back for a redo..

Does the FSM not call for a sealant ?
sealing compound......part# 001 989 31 20 ....
What is wrong with not wanting to have to come back for a redo ?
As long as they are following the Mercedes instructions ....

rocky raccoon · #3 09-17-2015, 03:41 PM

Generally, MB engineers the sealing surfaces so that no adhesive or sealant is required. I have replaced seals on my trunk, sunroof, doors and convertible top (R107) and have never used a sealant or glue. The channels accept the rubber seals and hold them tightly without leaks so long as they are clean and not rusted.

IRT windshields, I think (?) they are designed to pop out in a frontal collision. If so, sealing them in place is counterproductive.

leathermang · #4 09-17-2015, 04:14 PM

Quote:

Originally Posted by rocky raccoon

Generally, MB engineers the sealing surfaces so that no adhesive or sealant is required. I have replaced seals on my trunk, sunroof, doors and convertible top (R107) and have never used a sealant or glue. The channels accept the rubber seals and hold them tightly without leaks so long as they are clean and not rusted.

IRT windshields, I think (?) they are designed to pop out in a frontal collision. If so, sealing them in place is counterproductive.

" Generally"... ?? What does that have to do with the specific instructions from the FSM which Charmalu posted ?
Do you have any references for ' designed to pop out ' windshields ?

DeliveryValve · #5 09-17-2015, 04:24 PM

Quote:

Originally Posted by leathermang

Does the FSM not call for a sealant ?
sealing compound......part# 001 989 31 20 ....
What is wrong with not wanting to have to come back for a redo ?
As long as they are following the Mercedes instructions ....

I do believe you misunderstood me. I am not saying that they should not use a sealing compound. In fact, I think they should use CORRECT compound.

But I am against using URETHANE on the seal. The correct MB sealant will not harden and stick like urethane. The Safelite folks go with what is easy for them, and that is to shoot a bead of urethane with their battery powered caulking gun.

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