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MERCEDES W203 C180K: HOW TO REPLACE DEAD BATTERY

Changing battery for C180K is quite an easy work..

In my case, my 14 years old battery are suddenly dead. Although, I managed to strecth its life beyond its normal life cycle, but, it is time to replace that battery. Its not able to provide enough current anymore to crank the engine. Though, still work for smaller engine.

There is no specific procedure in doing this procedure..however, you might loss the setting in the car unless we have additional backup battery when doing replacement procedure. In my case, i dont have backup battery, so, i have to accept losing my setting.

In order to replace the battery, you need to have new battery and below is the battery specification for my W203 Mercedes.

100 Ah, 12V and 700A continuous current (CCA) with dimension 35.2cm (L) x 17.4cm (W) x 18.8cm (H)
Figure: Original mercedes battery

Original mercedes part number is A0055412101.
Figure: original w203 battery with part number (very reliable)

There are several choices available on the market. You can get genuine Mercedes battery, but, It will cost you around RM1300++ and you get longer battery life time as my previous battery. And if you are on the budget, get high quality battery from Bosch or Varta.
Figure: Varta 60044 for mercedes w203

Varta are known for making battery for mercedes, in my case, I went with Varta choice. I manage to get Varta Blue Dynamic with a bit higher CCA at cost around RM600 on 17 Jan 2018 this year. But, I am not sure how long this battery can last. Hopefully, it can last 2-4 years at least.
Figure: Varta battery


Please follow below step for installation
1) Park car on the level surface and secure the vehicle.
2) Switch off engine.
3) Open front hood and locate the access for the battery.
Figure: cabin filter cover located on the right side of the engine near the 

4) Remove cabin filter cover (you will find the battery under it).
Figure: battery located under cabin filter

5) Loosen the screw for negative terminal and disconnect the negative cable (secure the cable to prevent any short circuit.
6) Loosen positive terminal and disconnect positive cable from battery and isolate it.
7) Remove to screw holding the battery. screw located on the left side of battery. You might need some magnet to lift the nut screw.
8) Once done, remove the old battery. and insert new battery.
9) Installation is in reverse order and try to crank the car engine.

Hope this help anyone that having the same problem. More picture will be update later

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