The knock sensor wiring on my CIS M104 has pretty much fallen apart and the original part number is no longer available from the dealer: 002 153 74 28.

However, the knock sensor wiring from a W140 with an M104 looks the same to me (has same connections on both knock sensor and EZL) but uses a different part number: 003 153 48 28

Does anyone know if they are interchangeable?

Reference: Original MERCEDES Klopfsensor Ignition Knock sensor Sender unit W140 S-Klasse

Hi John - I looked up the original part number and we're able to get it. Please note that this is a special order item. Give us a call at 888-280-7799 and one of our MB part specialists can confirm.

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