100% Free

No Scanner Needed

Carly logo
Prices

linawolf3

Mercedes Citan Fault Memory Lock Issue

My 2017 Mercedes Citan, gasoline engine, has an error. The computer system says 'Fault memory lock active'. It seems undervoltage related. Any ideas?

Summary of the thread

A 2017 Mercedes Citan displayed a 'Fault memory lock active' error, suspected to be related to undervoltage. The issue was likely triggered by a voltage drop during startup, despite the battery appearing fine and no starting problems. A professional diagnosis traced the problem to a minor issue in the power distribution module, which was resolved by resetting the computer and clearing the memory lock.

Did this summary help you solve your problem?

4 comment(s)

UweWeberFan

I have a Citan and recall something similar. The active memory lock was likely triggered by a voltage drop during startup. The computer flagged it as a potential issue. Have you checked your battery or had starting issues?

linawolf3 (community.author)

Battery seems fine, starts without a problem. Was it the same 'Fault memory lock active' message? Any idea on the repair cost?

UweWeberFan

Yes, same message and starting was fine for me too. I'd advise getting it checked by a professional. The auto repair shop traced it to a minor issue in the power distribution module. They reset the computer and cleared the memory lock. Better safe than sorry.

linawolf3 (community.author)

Took it to a workshop. They found undervoltage and reset the computer. Cost me 240€. Thanks!

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

MERCEDES

community_crosslink_rmh_model

CITAN