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Please help, the instument cluster is totally not working I changed the fuse and it just shows a blob of red light for 1 second. Or when I touch the plug connecting to the unit, sometimes it shows the red blob of light for 1 second again.
What's wrong with it. It was working perfectly before I left the car to sit for about 1 week, in wintery weather, then it stopped working?
I have taken the unit off and opened it to see if there is any damage and it does not look like it. I can't test the speedo out of the car as it is too much for me to cope with.
2000 c230 kompressor special edition, 2012 E550 coupe (sold), 2017 C63 sedan (sold), 2018 C63S Coupe
Have you tried leaving it unplugged for a while (like overnight) and plugging it back in? Kind of a hail mary, but it has worked for some in the past. If you need a new cluster, ideally get one with the same part number as your original. You'll need to take it to a specialist who can "clone" your original cluster over to the new one. It can be done do both a new or used unit. This will keep the mileage correct.
Have you tried leaving it unplugged for a while (like overnight) and plugging it back in? Kind of a hail mary, but it has worked for some in the past. If you need a new cluster, ideally get one with the same part number as your original. You'll need to take it to a specialist who can "clone" your original cluster over to the new one. It can be done do both a new or used unit. This will keep the mileage correct.
Yes, I've left it unplugged for about 30hours, still not working.
Okay , would try a replacement thanks.
Yes, I've left it unplugged for about 30hours, still not working.
Okay , would try a replacement thanks.
Unfortunately simple replacing won't work.
Even if you find a cluster with the same part number mileage won't be displayed (you'll see dashed instead). I'm sorry I don't have time to explain everything right now, but I'll share more details tomorrow.
Alright, so here some information I promised :
Unfortunately those instrument clusters go bad which is not uncommon.
What to do with the cluster depends on you skills: I'd imagine that repairing it in a repair shop (there are plenty of them on eBay at least) would cost you about $300 (based of fact that it's clk240 I'd assume that you are not in the US so it might be different in your location).
If you know how to solder (our you have a friend who knows how to solder) you can buy a used unit (ideally with the same part #) and swap eeproms (it contains cluster configuration, VIN and mileage) between clusters (relatively easy job).
If you know a little be about electronics I can explain you how to transfer eeprom's data between clusters buy simply using Raspberry pi
If you have access to professional diagnostic tools like MB Star, Autel MaxiCom/MaxySys, AVDI, etc then it's easy to "re-learn" a used cluster to your car (virginazing first)
And the last option is if you don't care about seeing current mileage you can just install used cluster (again ideally with the same part # since it should guarantee the same cluster configuration)
Have you tried leaving it unplugged for a while (like overnight) and plugging it back in? Kind of a hail mary, but it has worked for some in the past. If you need a new cluster, ideally get one with the same part number as your original. You'll need to take it to a specialist who can "clone" your original cluster over to the new one. It can be done do both a new or used unit. This will keep the mileage correct.
Hi, I have replaced the instrument cluster and it is now working
However, I'm getting the SRS light come up on the dash ( "Restraint System Defective Visit Workshop").
The mileage is also different to mine and is showing "-----------" instead of the true mileage.
Alright, so here some information I promised :
Unfortunately those instrument clusters go bad which is not uncommon.
What to do with the cluster depends on you skills: I'd imagine that repairing it in a repair shop (there are plenty of them on eBay at least) would cost you about $300 (based of fact that it's clk240 I'd assume that you are not in the US so it might be different in your location).
If you know how to solder (our you have a friend who knows how to solder) you can buy a used unit (ideally with the same part #) and swap eeproms (it contains cluster configuration, VIN and mileage) between clusters (relatively easy job).
If you know a little be about electronics I can explain you how to transfer eeprom's data between clusters buy simply using Raspberry pi
If you have access to professional diagnostic tools like MB Star, Autel MaxiCom/MaxySys, AVDI, etc then it's easy to "re-learn" a used cluster to your car (virginazing first)
And the last option is if you don't care about seeing current mileage you can just install used cluster (again ideally with the same part # since it should guarantee the same cluster configuration)
Yes I have a Raspberry Pi could you tell me how to exchange the EPROM data from the old cluster to the new cluster ? That's sounds awesome if possible.
Yes I have a Raspberry Pi could you tell me how to exchange the EPROM data from the old cluster to the new cluster ? That's sounds awesome if possible.
(cheaper one should be fine as well) to connect to cluster's eeprom (it's 24C16 or similar, here is a https://www.mouser.com/datasheet/2/268/doc0180-1180742.pdf) check SOIC8 pinout: you need to connect GND, VCC, SDA, SCL to appropriate pins on RPi (i2c protocol), just in case you can connect WP (write protect, although I think they have internal pull-down resistor, so it should not be necessary, but not 100% sure) pin to GND.
And yeah you gonna need to disconnect main board completely otherwise I had issues with connected to the eeprom in circuit (i think there is a workaround, but disconnecting is just simpler).
Now I need to find a script I wrote for reading/writing that eeprom
You are going to need SOIC8 Clip like this one (cheaper one should be fine as well) to connect to cluster's eeprom (it's 24C16 or similar, here is a datasheet) check SOIC8 pinout: you need to connect GND, VCC, SDA, SCL to appropriate pins on RPi (i2c protocol), just in case you can connect WP (write protect, although I think they have internal pull-down resistor, so it should not be necessary, but not 100% sure) pin to GND.
And yeah you gonna need to disconnect main board completely otherwise I had issues with connected to the eeprom in circuit (i think there is a workaround, but disconnecting is just simpler).
Now I need to find a script I wrote for reading/writing that eeprom
Replace eeproms,ot test with PCB plate without desoldering
I have swaped the old "Green board" in the picture with the new "Green board" and the instrument cluster did not work.
So from that test, I know that the old "Green board" has issues. I don't know exactly what is wrong with it. Green board from old cluster, does not work when connected to new cluster.
Hi there,
Sorry folks, my move took much more time than I anticipated (turned out with a little baby everything takes 10 times longer :-D ).
If Jeko Atanasov has experience with Mercedes clusters you'd better to listen to him , I'm just a hobbyist, although I had success with transferring data and virginizing couple of clusters.
Old repaired cluster
The old cluster's lights come on, but all the warning lights also show up. When the engine starts , an additional error message comes on " Display faulty Visit Workshop". Nothing works like it should, like the headlamp is always on, indicators make no noise, no fuel is shown in the gauge.
The mileage is correct though.
New used cluster
Still works properly like it should. However, it also shows SRS error and the incorrect mileage
Last edited by Jashal56; Mar 12, 2022 at 02:55 PM.
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