Replacing your oil cooler lines is a very important maintenance item on your older Mercedes diesel. Getting them on and off though is a different matter! Over time and lots of frustration I have developed my own special wrench to loosen and tighten the fittings particularly on the oil filter housing and radiator oil cooler. Without this wrench I guarantee high levels of stress! Especially the lower one on the oil filter housing.
I have had a number of requests for this wrench so I have decided to offer it to our online customers. This is a special wrench set modified by Kent to make your line replacement a whole lot easier! The longer wrench is used to tighten and loosen the hose fitting end nuts at the oil cooler housing and the oil cooler. The shorter stubby open end is used to quickly spin the nut on and off.
Here is the picture of the wrench in action on a 123 chassis 300D. Note how easy it is to slip the wrench over the big oil line in order to get a secure grasp of the nut!
