Mercedes Benz C Class SAM Unit Diagnose and repair [Part 1]

[@benbrown3931]

I've had this same issue on my w211. Thank you for helping me get on the right track good sir!

[@fuzzs8970]

Hi Thank you for the video. Very detailed explanation very good English too

[@thefix9823]

Thanks for watching

[@jimmete53]

Excellent video. Well done.

[@sollykhan2385]

Thank you so much for these very valuable and informative videos, well appreciated, car's are a nightmare, esp modern one's! surprised that you only have 42 people whom bothered to comment or say thank you ? please post more, Bless 🙂😇

[@xainho]

very informative video, i have a c230 coupe kompressor 2002 and my speedometer isnt picking up, everything else works, i see some movement on the arrow for the speed on the instrument cluster when i start the car, which gives me the idea that there is maybe a short somewhere in the SAM, i will work on it soon and come back with an update. i hope its just cleanable corrosion on the SAM...

[@MuriloHarmonica]

Great video 👍👍👍

[@thebearofstars]

Everybody, clean out your rainwater drains regularly on any model benz, even if they are pampered and kept inside. I've had a 2005 CLK320 break down because of this, and the fact the prior owner lost the fuse panel cover and the water drain and redirection pan that sits directly above it, all of which are situated under the hood cowl vent. Also a 2005 C240, on which the plastic bulkhead that allows coolant to pass through the firewall, then further on through the heater core, disintegrated, which dumped coolant into the space between the cabin firewall, and the engine bay firewall, which happens to be right where the front SAM and the ECU and TCU live. I got lucky and realized what was happening when I looked down and it was over 300 deg F outside and I was going almost 150mph, which I was stopped and it isn't quite that hot in Texas...lol. I just unplugged the battery and removed those modules and cleaned them...

[@DaytonaDan-bi2wb]

That drain pan above the Fuze box is crucial. Also the Fuze box cover must be clamped down tight to keep the moisture out ,it also has a seal on it

[@PabloGuzman-ql5cs]

Bro mine won't turn on you think I can still clean it up?? The technician told me I'm not getting any communication from the front sam

[@sollykhan2385]

were you living on the planet 'Mars' at the time ? C'mon dude 300 deg F , and your still in 1 piece? and the local speed limit in Texas is permissible at 150 Mph ?? and the fed's just saw a fleeting cloud of dust wiz by, maybe i need to move to Texas too 🤔

[@thebearofstars]

no dude... lol . the point was that those reading were not possible, and my ecu was neck deep in coolant at the time, but somehow it didn't ruin it. @@sollykhan2385

[@thebearofstars]

the 150mph and 300 F readings were noticed when i stopped at a stoplight, and the car was running funny... i was lucky that i noticed it and was able to turn the car off and unplug the battery relatively quickly. i do love a tall tale, but no c240 i know of would feasibly go that fast, but if you read the paragraph i wrote again, you will see that i stated that i was stopped at the time i noticed the erroneous readings.

[@dogniunsergedouho5361]

very enriching video Thank you 2:17

[@nathangiles1404]

Hi, this video is fantastic along with the part 2! So much so that I've decided to have a crack mself. I was wondering if the diagnostic machine you usd was a mercedes specified one or would I be able to use a generic obd reader? Many thanks

[@rscelectrical7091]

I find it a lot easier to number each plug with a paint marker before taking a high resolution picture of the plug layout. That way there's no questions as to what goes where.

[@rottenrick1969]

Great Video. Lots of help. Just what I needed to fix my car.

[@antodzoic]

BRAVO ARKADAŠ..

[@TheDerekeder]

Many thanks!

[@Lamin-b8p]

I'm having the same issue also thanks for your help

[@hatemeg1340]

Subscribed sir!! ❤️👍

[@hayettek.7990]

Really great vidio

[@juliandodwell8213]

Great videos. Does the sam need prograing on replacement?

[@thefix9823]

Hi it does not need programming

[@whlawson5812]

Would the peeled lip of cowling, for your car windshield, allow more than normal amount of moisture, in the area of SAM?. My right hand side headlights & signal lights begin to intermittently come off & later on. Would cleaning circuit, with a little bit of WD40, be better as it should be able to give a layer of protection against corrosion. Regards.

[@TheWebsiteBiz]

thank you very much Sir.

[@jajcozucchini5438]

thanks for this video , great learning experience

[@emirwati]

Helping video, thank you. I noticed that it is not easy to bring out the SAM box. If you remember, what is the Torkx key number, and where can we get the short one for the odd screw?

[@justlead1]

Great delivery and explanations take up training videos as a career

[@mozartpiano23]

Thank you

[@aslr364]

omfg u thank you different year and model but ..!.!.!. u save my ass!!! grateful 4 u and thank you for this vid!!!

[@thefix9823]

Glad I could help!

[@muhammadsheraazshaik1587]

Hi...I Am Recently Having A Problem With My Mercedes Benz W203 C180 Does Not Get Power To The Cluster, Ignition Not Reacting, Hazards Wont Work, Central Locking Wont Work But Lights Do Work I Have Checked Sam Unit After Stripping It Out Of The Car As You Did And Opened The Front Sam Unit And Everything Looks Fine Any Idea What Could Be The Problem???...... Great Videos Keep Up The Good Work

[@alexandreforsythe4027]

How would I know if it’s the front or rear Sam model that needs to be replaced/repaired?

[@AlejandroLopez-xf8ry]

Is this the front sam fuse or module??

[@karakerem8831]

Hello I have a question, none of my signal lights are working also my left headlamp isn't working. I think it's caused by a bad jumpstart where I accidentally put positive at negative :(. And so I changed the battery, but these are now my problems. I also can't find any fuse for my signal lights. I have a Mercedes viano w639 2006. Might the problem be with the sam unit? Thank you :)

[@bryanjones5878]

Replaced used or new sam unit module a must reprogram it only Mercedes dealers or if you have programs it.

[@michelnadon6243]

my gl has a small auxiliary 12v battery . if the negative is removed from the main battery is the voltage remaining in the car

[@sdel2694]

hey, wouldn't you need to check both sides of the board?

[@vocals7693]

Excellent, but you're better off removing the PCB cover and cleaning the PCB without removing the unit completely. Save yourself a lot of time and trouble trying to remember where all the underside connectors go.

[@DiscoGemini]

Which is EXACTLY what I did. But mine still doesn't work

[@noequelle6382]

If the steering wheel is on the other side, it's not that easy... The rod for the windshield wiper is also too much in the way when cut open and you can't get the module out. No matter what you try. You can only let the windscreen wipers move vertically and then you're good to go. However, if this does not work as can be seen here and also unfortunately for me, as I had to find out, you are unlucky. Or can the windscreen wipers be raised externally somehow?

[@thefix9823]

Hi, if you unclick the rod out of the ball, then by hand, move the wiper across the windscreen

[@noequelle6382]

@@thefix9823 Sure, but the other rod with the hole in it is in the way and cant move inside. I was not able to get the Sam Out of its Container because it was blocking so much space

[@thefix9823]

Put the wipers on when in upright position switch off ignition

[@noequelle6382]

@@thefix9823 my Car have the Same problems Like this Car. The indicators and the wiper dont Work anymore...

[@thefix9823]

You might have to take out the wiper motor completely

[@MuzixMaker]

Since everything was disassembled I would have tried cleaning all of the connectors and contacts.

[@zakshafi7595]

that looked difficult putting the SAM unit back

[@PabloGuzman-ql5cs]

What if my car is not getting communication to the front sam ot womt turn on it says Inoperative Will this work? Im having trouble finding a new one or used one the technician told me i was the front sam

[@autolancegega599]

I never knew German engineered cars are a pain in the A$$ to fix, would rather prefer my Japenese car any day.

[@Casmige]

Easier to disconnect the negative wire on the strutt housing, no?.

[@ndavid5]

Where can I order one?

[@thefix9823]

Hi you can order one on ebay

[@mainrig4981]

got an clk 200 .my tail lights turns on wwheen i turn on low beams

[@thefix9823]

Hi, check if any of the other light bulbs are blown

[@thebearofstars]

If the bulbs are all good, like the host here has suggested, try cleaning your ground wires. Find the bunches of brown ground wires, take the nut off the grounding post and remove the wires from said post. Clean off the corrosion, one by one, from the wire end connectors with a wire brush and or sand paper and treat them with battery terminal post protector. Do the same to the ground post, and the securing nut on the chassis side as well. If you want to be very very thorough, which I do advise doing, repeat this process for all the grounding points in the car. When these Benz's get to be as old as ours are (I have a 2007 CLK550, and a 2002 CLK430, which reminds me the 430 is a classic now! And so am I hehehe!) the corrosion is quite invasive and prevalent. Cleaning all the grounding points will also help keep the modules you currently have happy and cool, as bad ground wires increase resistance across the entire circuit as a whole, which causes heat buildup, and premature failure of expensive modules and electrical components, alternators, and batteries... Not to mention tow truck bills, headaches from being late to work or an upset friend/spouse/other etc etc... Sorry for the verbose reply but I hope it will help someone out somewhere sometime. Happy Benz-ing!

[@juliandodwell8213]

If you take all the relays out you have more room to get the Sam out

[@ecutechltd]

Why not just repair it? You could see the track damage.

[@DefiantMongoose]

Yup my Euro Mechanic just repaired mine and its good as new 👍 but if you your cash heavy the other way is to just buy a new one which will cost a lot of money

[@user-xv2yn9yr8v]

May be you should have thoroughly cleaned the entire circuit board and not just the portion that was visible to the eye.

[@АндрійКомар-ю9т]

Boruit rj-020

[@independentthinker-lr9mu]

BRO I THING YOU JUST NEEDED TO TAKE THE BATTERY OFF FOR SOMETIME, NOT ALL THAT FUSS...

[@o.ko.k7550]

I will never buy a Mercedes neveeeer all the Same shit w203,w210,w211....

[@whlawson5812]

about 2 weeks ago I trim off the cracked strip of rubber for the whole length of the cowling of 1.6m. There will be a gap of 5 from cowling to glass Remove wiper & clean the cowling & windshield and left it dry for 1 day. Then stick on rubber seal of 27mm width bought online. Key in google "Seametal 27mm rubber roof sealing tape" for less than USD3 for 2m length. Cut a short 6" length of sealing tape. Trim it correctly to fit the corner of the cowling to windshield. Use this as a testing strip. Peel the red strip from the 3M sticker to stick it. 😂😂😂