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Hello Roadtoad, I’m not sure whether or not you have read my earlier post yet but I also meant to ask you a question regarding the multifunctional display in the centre of the instrument cluster when you turned on the ignition. If a “hard fault” should exist anywhere within the supplementary...

Hello Roadtoad, Thank you for the questions although you have significantly deviated from the original aim of the thread. The code/designation number for the circuit that you refer to here in the screen shot photos - A1e15 is the SRS - MIL (supplementary restraints system - malfunction...

Hello MBCLK1, Welcome to the forum by the way, a really good first post and well described symptoms, which helps us enormously when trying to diagnose issues and faults. The NiMH batteries (there are two of them) inside the alarm unit have deteriorated and leaked which has resulted in...

Attached photo of W215 door control module. Regards, Dash1

Hi Ray, Thank you very much for the update, that really is good news now Ray so lets look at what you have covered and I’ll go over the system and what to do next. Disregarding the voltage drop tests for the moment, as these now appear to be stable. The n/side door control module itself is...

This post is only following on from a previous personal PM exchange dated 27/08/15 between Ray and myself and with a final update on the latest tests/checks which I outlined for Ray following my last post on the thread. I’ve only included these here now as a matter of interest for anyone that...

Hello Hawkwind, You’ve already found the answer to your question; a 0.090 amps drop with the ICE unit having now been disconnected and isolated from the cars electrical circuit already confirms where the problem is. A standard parasitic/quiescent drain figure of between 0.020 - 0.025 amps...

Hi Ray, Thanks for the update and the additional information. I’ll cover the points you raise as we go through the post to make it easier to follow. Firstly, the keyless-go issue is a relatively simple “key restore” application process within the module itself if carried out by the dealers...

It’s no coincidence here Ray but the current drain on this particular circuit alone when in its “standby” or “active” mode is not that far away from the fluctuating figure we are looking for. If you do find that there is constant current being drawn on this particular circuit or it is...

Hi Ray, Thank you for the updated information of which I’ll go through with you now to clarify the outcome of the test results. My apologies for only just coming back on to the forum but we only arrived back in the UK following our holiday on Tuesday evening and I have been busy with other...

Obviously, as previously mentioned above, one has to take in to account and consider for age related circuits and any deterioration within those circuits themselves, especially, the connections where they terminate and the environment they are located in. Damp, wet and dusty condition under a...

Hi Ray, I did leave you an earlier message on the thread on Saturday evening to say that I would reply sometime yesterday, unfortunately, I didn’t really have the time so my apologies for the late delay. Anyway, thanks for the update and yes I am doing really well at the moment, fingers...

Hi Ray, I’ve just read your last post and I am going to read through the whole of the thread again later on tonight to see where we are up to. I haven’t been on here for quite a few weeks now to I’ll catch up on what I’ve already stated and covered. I probably won’t come back on today but...

Hi Ray, Thanks again for the update and thanks very much for asking about the short holiday break. We really did enjoy ourselves; it’s been a fantastic week and especially with the good weather and all, it’s been quite a while now since we both had any kind of break. Ray, if I do have any...

Hi Ray, Thanks for the update. I will eventually get round to and cover all the points that you have raised in the last post and to date, however, I haven’t got time at the moment to go through every single issue with you in any significant detail, but the recent tests you’ve done have...

When you initially started to pull fuses out it didn’t prove anything other than to confirm there was a large current draw. Now that the figure of 2.4 amps (2,400 milliamps) has been reduced we have our final figure and by pulling fuses out at this stage would not give us an indication of...

Hi Ray, Thanks for the update and the additional information. I really am extremely sorry for the delay in coming back to you as I know how important this is for you to get the car repaired, but as you know most of my time these days really is accounted for with work commitments, roll on...

Hello KjI, Thank you for the question and to digress slightly off-topic for a moment. To answer the question correctly, then the answer has to be no, these units are sealed for life and as such are a disposable unit which means following its life cycle (approx 8 years or so) its meant to...

Hello Ray, Thanks for the update and the additional information, much appreciated. As I said on a previous occasion, it’s surprising what difference a little bit more information can make as I can only advise/help someone if I know exactly what the symptoms are and as they are described to...

Hello Ray, Thanks for the update and sorry for the late reply. Lets specifically deal with the error code first before we think of going anywhere else at the moment with the parasitic drain. By all means, carry on and use your ammeter and let me know what the final readings are, we can...