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These two items were replaced in a different time. The new sets are coming in together and i assumed that they (MB Dealer) will synchronise these 2 simultaneously. Do you think it makes any difference?
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unfortunately it doesn't make any difference as the IFZ has to be initialized to the keys anyway, once it has been initialized it is no longer permissible to install the old control module (even for testing). otherwise malfunctions can occur in both control modules.
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Yes, this simulation was performed right in front of me, that's when the MB Technician concluded that the old IFZ 210 820 21 26 was faulty and replaced a new one 210 820 62 26 (but it did not solve)
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The part number on your new IFZ is the current number, this will be the same on the next IFZ.
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So you think this has nothing to do with the HFM being faulty (Just a suspiscion)? All drivability performance are normal though.
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hmm, could your problem be the HFM?
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This has been going on for 7 months now ever since I had installed a new ECU.
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why was the HFM replaced? is the CAN signal getting to the HFM but it's not being recognised? has the CAN connector on the HFM been checked for correct fitment? i hope this may help
