I got a bit paranoid about the silicone bag and, because my expansion tank had the bag in an internal tube, I could not remove it. So I changed the tank for the latest revision which does not have a bag. Fine so far. But what I don't know is what is the coolant in the car. Is it g12 or g13. Various posts on here state it should be on the tank but I can't find it. If it is g12 can I top up with g13 and vice versa? 😧

At the factory my Roomster was filled with G12 but I believe the dealers topped up with G13.

https://static.nhtsa.gov/odi/tsbs/2020/MC-10170208-0001.pdf

 

Will tell you what you need to know, G13 would be in the car. But most will top up with G12, G13, G12evo nowadays. 

53 minutes ago, BillyParker said:

 Is it g12 or g13

 

It won't be G12, that's ancient.

 

Most likely G13 or G12evo from factory, I'd use G12evo to top up as it's the newer tech and compatible with G13.

 

Original tank with silicate bag has a big "G13" icon on it.

G12 eco should be good!  

On 05/09/2023 at 19:45, BillyParker said:

I got a bit paranoid about the silicone bag and, because my expansion tank had the bag in an internal tube, I could not remove it. So I changed the tank for the latest revision which does not have a bag. Fine so far. But what I don't know is what is the coolant in the car. Is it g12 or g13. Various posts on here state it should be on the tank but I can't find it. If it is g12 can I top up with g13 and vice versa? 😧

Do you have the Part Number for the new Coolant Tank (without Silicone Bag)?

On 18/05/2023 at 19:45, BillyParker said:

Okeay picked up header tank today. Saw video on youtube showing it being fitted. Half hour job, but probably two hours for me. Attached pictures of tank, number on tank and number on picking slip. Don'tknow what one is the actual part number. Probably do it over the weekend.

Address for youtube vid

 

Post I put on earlier