Gearbox Oil

[Alex225]

Hi guys, very quick question. Is it worth factoring in having the gearbox oil changed in my CLS?

The car is a 2007 has 17k on the clock so not sure if it's necessary. I've found through here a relatively local independent specialist who offers the auto gearbox oil change at a decent price.

Is this a necessity? Read online some recommend yearly changes but it's a new element of servicing so thought I'd ask the Merc experts!

 

[BlackC55]

Every 40k is sufficient. 17k is a bit early imo

 

[Alex225]

Thank you mate. So you'd do it based on mileage rather than age?

Auto boxes are a new thing on me but seeing how essential the oil is to an automatic I want to maintain it as well as possible.

 

[Grey Area]

I would think it's more mileage dependent than age, yes. We're talking about a powerful car here but I would think the gearbox is more than capable of doing 40k without needing an oil change.
Some one may correct me, but I believe some autos were originally designed to be 'sealed for life' units that would never require an oil change, don't think that worked out though...

 

[Alex225]

I must admit my common sense would lead me to think that 40k+ is realistic but that's just my thoughts rather than anything.

I do understand modern synthetic oils are more resilient to breaking down over time than old mineral oils. Always good to check these things.

 

[Grey Area]

Absolutely worth asking, definitely not something to ignore in blissful ignorance!

 

[ahok19]

Every 40k is sufficient. 17k is a bit early imo

Agreed with you

 

[Alex225]

Absolutely worth asking, definitely not something to ignore in blissful ignorance!

Ignorance is not always bliss.

Especially if you get a whacking great bill because of it haha