![]() Light actually came on at the garage when I went to collect the ML. Had the tank replaced this week (aftermarket one AU$200 fitted - genuine MB tank AU$496) but that tank replacement did not fix the problem. Who said this is a fairly common fault and recommended a replacement of the coolant tank as the switch is inbuilt and connot be replaced separately.-this thread confirmed this thankyou. I took ML to local ‘so-called-specialist’. In all instances, temperature indicator needle position does not change. My ML has traveled 119,000 Klms (73.5k miles)Įven though fuse was replaced as per Post #64 this thread, the low coolant light has started coming on randomly again - sometimes while stationery - other times while driving. Thought my issue was fixed but it’s not – and gets worse. I can't see any melted loom and all the wiring to the fan is heavy duty so I can't imagine it was that. Is there something else can could have been burning and potentially blown? Or is there another fuse/relay that could have blown? I thought the fan was probably burnt out so replaced the complete unit including the resistor pack (or I think it's called a FCU?). I've since got replacement 7.5a and 10a fuses, but when I fit them they don't blow and the warning lights wont clear, the car remains in limp and the fan doesn't operate at all. I pulled the fuse (which hadn't blown) and let everything cool down checking nothing was alight!Īll was well and I ended up limping the car back on the motorway at a snails pace keeping an eye on the coolant temp (which didn't raise above middle point anyway!). Then there was a clicking noise and the fan stopped. Put a 20a one in and it didn't blow (my last spare fuse!) but smoke started to appear from the engine bay and an electrical burning smell. So as I didn't have another spare 7.5a fuse, put a 10a one in and shortly after that blew too. ![]() I replaced the fuse, the fan kicked in at full speed and I drove without the warnings for a few meters before the fuse blew again and the warnings came back with the limp mode activated! The fan stopped too. Also all of the screws had already been removed so I suspect this was an issue in its history too. I wonder if anyone can help, I've recently acquired a 2001 ML 270 CDI and in my first month of ownership I've had the EPC and Coolant warning light come on, limp mode activated and the hidden 10a fuse blown (although mine was actually a 7.5a?). ![]()
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