AC no heat
Thread Starter
Newbie
Joined: Nov 2018
Posts: 2
Likes: 0
2013 GLK 350
AC no heat
I have a 2013 GLK350, I have AC but no heat, the shop said it was the water pump but the engine is running fine and not over heating so I don't think thats correct.
Looking on line it looks like the 2013 GLKs no longer have a "heater control valve" (they stopped in 2012 and replaced with an aux heater core) which I thought it could be, any thoughts.
I was thinking it was the heater or Aux heater core.
I was thinking about flushing the coolant but it's in the low 30's now but it's still an option is that might be it, a clogged or obstructed core.
Looking on line it looks like the 2013 GLKs no longer have a "heater control valve" (they stopped in 2012 and replaced with an aux heater core) which I thought it could be, any thoughts.
I was thinking it was the heater or Aux heater core.
I was thinking about flushing the coolant but it's in the low 30's now but it's still an option is that might be it, a clogged or obstructed core.
Senior Member
Joined: Jul 2014
Posts: 422
Likes: 61
From: South East US.
2015 GLK350
You have the two water pumps. The primary pump is belt driven on the engine and the auxiliary is electric. Perhaps the electric pump died and is blocking flow to the heater core- rockauto has them for $45-ish. However I have no idea how hard it is to replace.
Was this a shop that specializes in Mercedes? If not then take it to a Mercedes shop.
Was this a shop that specializes in Mercedes? If not then take it to a Mercedes shop.
Thread Starter
Newbie
Joined: Nov 2018
Posts: 2
Likes: 0
2013 GLK 350
You have the two water pumps. The primary pump is belt driven on the engine and the auxiliary is electric. Perhaps the electric pump died and is blocking flow to the heater core- rockauto has them for $45-ish. However I have no idea how hard it is to replace.
Was this a shop that specializes in Mercedes? If not then take it to a Mercedes shop.
Was this a shop that specializes in Mercedes? If not then take it to a Mercedes shop.
