Belt Drive Belt tensioner Climate Compressor missing

Hello,

I want to change all the belt of my car because of 72000 milage and preventive maintenance.
By this way I found out that the belt tensioner for the climate compressor is missing.
It is a second hand car and I don't know what the pre owner did. When I look at the mounting point for the tensioner, then it look like that there was never a bolt in.
I dont know how they got the belt on.

So it look like that I have to buy the tensioner,

I am pretty sure there is no tensioner on the A/C compressor belt.

This thread has a .PDF with the instructions for both belts.

Thanks for the link, when I look to the second pdf down the last picture I can see the belt tensioner, maybe for the model later they installed it.

Originally Posted by BMW645 Germany

Thanks for the link, when I look to the second pdf down the last picture I can see the belt tensioner, maybe for the model later they installed it.

I think BMW re-uses pictures from different cars in the TIS. The first and second PDF look like completely different motors. Maybe send brown370 a PM since it looks like he has changed these belts a few times.

The V-Belts has a tensioner and the A/C Compressor does not. You have to pull the belt off with a rag while turning the crank. You have to use a special tool to stretch the new belt on.

You will need a sepentine belt tool w/ a large Torx socket T-55. To remove the sepentine belt first (lest than 10 minutes) Take a picture of the belt before removing it so you know how it goes back on.
Jack up the car and remove the front underbody cover. You use a towel to remove the A/C compressor belt while turning the crank/engine. One you remove the old A/C belt, put the new belt over the crank first, and then install it on the bottom of the A/C compressor and install the tool pictured on the A/C compressor pulley. Turn the crank clockwise keeping the belt tight and the tool will pop the belt on. I had to do it twice because the belt ribs did not line up the first time.

Thanks for the help, I postpone it in the moment. After changin of the O-Ring for the temp-sensor and changing of transmission oil, I need a rest. :-) Will do that then later, but it i slik u wrote.

my 06 650 is missing the a/c belt and tensioner,along with part of the upper oil pan,did the 06 have a tensioner?

I am fighting installation of the AC belt. I made a tool to hold the belt and turn the crank over similar to the tool shown in the prior post. Even with my home made tool I am having difficulty.
I need to break down and buy the proper BMW tool to install the AC belt. I cannot find the part number for the AC belt installation tool.
Does anyone know the part number for this tool or where to find it?

Sorry, I found the part number of 64 1 040 but I cannot see any of the online suppliers that list this part number. I guess I may need to try to special order.
Thanks

i had the same problem bro my climate belt cut while driveing i took it to a random independent shop to replace the belt the mechanic told me my tenssioner is misssing but i took it to bmw technition he told me that this cars dont have tenssioner but not any mechanic can replace it the mechanic needs to have this special tool to install the belt so so if i were you ide take it to a bmw specialist shop

does anyone know why my dynamick drive malfunction light is on and how can i fix this problem