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Discussion Starter · #1 ·
Greetings from Holland. I have a lovely CLA 45 shooting brake in dark grey with black optics package. It is a truly brilliant car, deadly fast and also super practical - which important for me as I have a baby daughter and a big dog to ferry around the place. I regularly drive from the UK to Holland, also to Munich, and it is incredibly reliable and surprisingly economical on long runs. My previous car was a B7 RS4, which I really loved as well - but the fuel consumption and outdated screen was an issue for daily use.

My car is mostly standard except for a dyno tune, which took it to 398 BHP and 560 Nm. Work was done by Chip Performance in Holland, who are official AMG specialists.

Now very happy with the performance of the car I tuned my attention to the interior. The car came with the alcantara AMG line seats in the front, which are pretty good - but I really wanted to switch the proper Recaros which I now have fitted in the car as of yesterday. I believe they came out of a repo A45. I also managed to pick up the matching steering wheel which is super nice, but missing the lane control vibration warning.

The drivers side seat is plug-n-play (even though it is manual, vs the original electric) and has no apparent issues or warning lights, but the passenger side seat has a very different white connector (the AMG line seat has a big connector with 7-8 wires, the Recaro only has two wires). To test the car I just connected the big yellow connector (I believe this is air bags) and left the white connector out, and seeing as I have no warning lights on that all seems to be OK. But then this strange bug appeared with the passenger side window randomly dropping down an inch or so ever time I close the door.

Sorry about the long intro, here are the specific questions:

1. Does anyone have a link for set of wiring diagrams? Seems my A45 seats and my CLA car side wires are also different colours going into the yellow connector, but as I have no faults popping up I'm thinking its just colours that are different, and not the wrong circuit.
2. Has anyone run into similar issues with the window dropping, and could this be from the battery disconnection I did while changing the seats. Seems strange that anything for the window would be wired via the seats...but maybe someone has ideas?
3. Is it possible to keep my original seat bases with all the right connectors for my car, and just change the seat bottom and back to the Recaros? Looking at it it seems like those plastic parts that clip into the metal frame, cant be removed with damaging the clips - looks like a sort of one time use clip. But maybe someone has done this?

All feedback, ideas and discussion points welcome. Many thanks.
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Discussion Starter · #5 ·
Wind window alway down hold switch down for 5 seconds wind all way up hold switch up for 5 seconds should now be reprogrammed, fingers crossed it sorts it
Now on the side of the highway waiting for recovery. Car had a freaken meltdown. First the command switched off, then all kinds of warning lights, then power steering went, finally the car stopped and freaked out blowing hot air suddenly. Now it’s completely dead and I’m wondering how the fuck this could happen from changing a seat.
 

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Discussion Starter · #8 ·
Disconnect seats, and battery over night, then connect battery in morning, hope you had fuel in car?
hope it’s not shorted anything in the command system
Its now at the recovery depot and going to the AMG guys on Monday. Yes it had a full tank.

road side assessment showed the battery only had 4 volts. His initial thought was the alternator had gone….but seems unlikely that that is the real fault and it must be something with the wiring. There was now power across that huge 350A fuse by the battery. I drove it to the depot with auxiliary battery and left it there. Fingers crossed it’s all solvable without massive expense. Really stressful…had my baby girl in the back through all this :( now home thinking wtf…
 

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yes lately (more than 4-5yrs for some) the dead main or aux battery causes a lot of christmas tree lights
that may be the german humor … vas eees all zee vights? kaput battery yah!
 

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Discussion Starter · #14 ·
yes lately (more than 4-5yrs for some) the dead main or aux battery causes a lot of christmas tree lights
that may be the german humor … vas eees all zee vights? kaput battery yah!
The general understanding over here is that ze chermans are missing that entirely ;) Though there are some exceptions.
 

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Discussion Starter · #15 ·
Turned out to be nothing to do with the seat at all - alternator had indeed failed. Had the down pipe changed while the mechanics were in there. Now makes 420bhp and 690Nm. Seat change was all worth it in the end - really transforms the whole feel of the car. Also got some nice P zero tyres.
 

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Greetings from Holland. I have a lovely CLA 45 shooting brake in dark grey with black optics package. It is a truly brilliant car, deadly fast and also super practical - which important for me as I have a baby daughter and a big dog to ferry around the place. I regularly drive from the UK to Holland, also to Munich, and it is incredibly reliable and surprisingly economical on long runs. My previous car was a B7 RS4, which I really loved as well - but the fuel consumption and outdated screen was an issue for daily use.

My car is mostly standard except for a dyno tune, which took it to 398 BHP and 560 Nm. Work was done by Chip Performance in Holland, who are official AMG specialists.

Now very happy with the performance of the car I tuned my attention to the interior. The car came with the alcantara AMG line seats in the front, which are pretty good - but I really wanted to switch the proper Recaros which I now have fitted in the car as of yesterday. I believe they came out of a repo A45. I also managed to pick up the matching steering wheel which is super nice, but missing the lane control vibration warning.

The drivers side seat is plug-n-play (even though it is manual, vs the original electric) and has no apparent issues or warning lights, but the passenger side seat has a very different white connector (the AMG line seat has a big connector with 7-8 wires, the Recaro only has two wires). To test the car I just connected the big yellow connector (I believe this is air bags) and left the white connector out, and seeing as I have no warning lights on that all seems to be OK. But then this strange bug appeared with the passenger side window randomly dropping down an inch or so ever time I close the door.

Sorry about the long intro, here are the specific questions:

1. Does anyone have a link for set of wiring diagrams? Seems my A45 seats and my CLA car side wires are also different colours going into the yellow connector, but as I have no faults popping up I'm thinking its just colours that are different, and not the wrong circuit.
2. Has anyone run into similar issues with the window dropping, and could this be from the battery disconnection I did while changing the seats. Seems strange that anything for the window would be wired via the seats...but maybe someone has ideas?
3. Is it possible to keep my original seat bases with all the right connectors for my car, and just change the seat bottom and back to the Recaros? Looking at it it seems like those plastic parts that clip into the metal frame, cant be removed with damaging the clips - looks like a sort of one time use clip. But maybe someone has done this?

All feedback, ideas and discussion points welcome. Many thanks.
View attachment 68360 View attachment 68361
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Greetings from Holland. I have a lovely CLA 45 shooting brake in dark grey with black optics package. It is a truly brilliant car, deadly fast and also super practical - which important for me as I have a baby daughter and a big dog to ferry around the place. I regularly drive from the UK to Holland, also to Munich, and it is incredibly reliable and surprisingly economical on long runs. My previous car was a B7 RS4, which I really loved as well - but the fuel consumption and outdated screen was an issue for daily use.

My car is mostly standard except for a dyno tune, which took it to 398 BHP and 560 Nm. Work was done by Chip Performance in Holland, who are official AMG specialists.

Now very happy with the performance of the car I tuned my attention to the interior. The car came with the alcantara AMG line seats in the front, which are pretty good - but I really wanted to switch the proper Recaros which I now have fitted in the car as of yesterday. I believe they came out of a repo A45. I also managed to pick up the matching steering wheel which is super nice, but missing the lane control vibration warning.

The drivers side seat is plug-n-play (even though it is manual, vs the original electric) and has no apparent issues or warning lights, but the passenger side seat has a very different white connector (the AMG line seat has a big connector with 7-8 wires, the Recaro only has two wires). To test the car I just connected the big yellow connector (I believe this is air bags) and left the white connector out, and seeing as I have no warning lights on that all seems to be OK. But then this strange bug appeared with the passenger side window randomly dropping down an inch or so ever time I close the door.

Sorry about the long intro, here are the specific questions:

1. Does anyone have a link for set of wiring diagrams? Seems my A45 seats and my CLA car side wires are also different colours going into the yellow connector, but as I have no faults popping up I'm thinking its just colours that are different, and not the wrong circuit.
2. Has anyone run into similar issues with the window dropping, and could this be from the battery disconnection I did while changing the seats. Seems strange that anything for the window would be wired via the seats...but maybe someone has ideas?
3. Is it possible to keep my original seat bases with all the right connectors for my car, and just change the seat bottom and back to the Recaros? Looking at it it seems like those plastic parts that clip into the metal frame, cant be removed with damaging the clips - looks like a sort of one time use clip. But maybe someone has done this?

All feedback, ideas and discussion points welcome. Many thanks.
View attachment 68360 View attachment 68361
View attachment 68358
View attachment 68356
View attachment 68357
View attachment 68359
Very nice looking car, how is the boot space with the dog? I have a German Shepherd and am looking at Golf R estate or Cla 45 S/Brake. Prefer the merc for looks and equipment but not sure if the boot space would be big enough?
 
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