I replaced these hoses on my SL65 so your SL600 would be very similar if not exactly the same.I have a leaky hose It's the one that comes off the pump takes 180 and then seems to dead end and one have a oert number also I'm trying it myself any insight would be great
Insight .. It is not an easy job. Not just a couple of hours relaxing in your garage tinkering with the car. Do some searching on the pump replacement on V12 cars. Check out the link below to get you started.
ABC hose repair - MBWorld.org Forums