How to replace the DPF differential pressure sensor on a Mercedes OM651 engine (detailed guide).

If you find the video useful, please consider supporting me with only 1% of what you spared with this job at a coffee price: ko-fi.com/ticktimeyt. Thank you :-)
On KZbin every job looks easy... But reality is different.
I hope that with this video you'll be able to do the job, without breaking anything.
This is a C200 CDI w204 facelift model. Car showed P245328, P245414 and P246309 trouble codes.
Sensor from Bosch costs about 35 euros. You can easily spare 250 euros doing the job yourself.
Good luck :-) and please subscribe to support my effort :-)

[@cooltube]

Just done this today on my son’s car. There’s no way I would have completed it without your video. Great job👍🏻🇬🇧

[@ticktime6569]

thank you

[@lawrencehenson8409]

This had already been briefly explained to me, but your video added extra & vital information ,well made & very informative, thank you.

[@ticktime6569]

thank you!

[@ibero2]

Very useful and well explained. Best than the others searched.

[@ticktime6569]

Thank you

[@reimayo]

Good video! Since I didn't have proper pliers, I replaced the pipe fittings with regular clamps. It seems to work. The power came back on and the fault light and codes went away after the test drive. So the error light was still on during the test drive, but the error light went out when restarting. Thank you so much for the video, it was very helpful!

[@valtteritattari9675]

I did this once without taking out the air filter housing using long nosed pliers.. Recommending the method in this video

[@enigmachish]

Thank you for this video, will try myself when I get the part in.

[@ticktime6569]

Good luck

[@enigmachish]

@@ticktime6569 having trouble putting the hose clips back on. Do you think cable ties would suffice? Thanks

[@ticktime6569]

@@enigmachish try with clips with a screw, but they must seal properly. Good luck

[@enigmachish]

@@ticktime6569 all sorted, you’re a legend

[@williamkennedy5492]

I have been looking for the location of this sensor as i have the sensor code up om my reader , so a big thank you, its buried isnt it, Hello again, thanks for the message, In the end i took the aluminium casting off and it made the job easier until i tried to put the casting back on , the clamp that hold the two pipes going to the diff pressure switch had moved slightly so i had to loosen that off to realign the flex pipes , then put the casting back on, now for the test drive. UPDATE test drive fantastic no more engine management light on and full speed restored. INFORMATION A few weeks back i had to apply the brakes hard, the back end swung around, at first i thought a caliper had hung up but was so shocked when i found the rear subframe had rusted through from the inside causing a support arm to detach from the frame, I complained to Mercedes customer service and the car was booked in for inspection, they did that for free, and also replaced the rear subframe FREE and labour costs FREE i did have to pay for new brake pipes and suspension springs , ( ouch) the W212 E class and its smaller sister the C class suffer with sub frame failure and they are being replaced under extended warranty. The problem is you cannot see the rust until it fails. Once again many thanks from a now happy W212 owner . Cheshire UK

[@ticktime6569]

Yes. Good luck for the job

[@averagedev7768]

i deleted the DPF and the sensor a long time ago, but still a good tutorial i would have needed for the job

[@ticktime6569]

Thank you

[@tobiasvoncarnap5250]

Thank You very much!👍👍👍

[@ticktime6569]

Good luck

[@typiak56]

MERCI beaucoup pour ce partage 👍

[@ticktime6569]

je t'en prie

[@conny-r]

Sehr gute Demonstration

[@ticktime6569]

Thank you :-)

[@teech16]

Very good video and well produced. Is it possible to unplug the sensor hoses without the proper pliers, using a normal pair of pliers. If I need to get the proper pliers, where can I get them please? Thanks

[@ticktime6569]

Thank you. Do you mean the click clamp pliers? Many brands produce them. Good luck

[@user-gs1so3sr5y]

Дякую за відео =)

[@ticktime6569]

you're welcome

[@everythingtech6377]

great , informative video , I wonder if you come across this strange problem engine 651 2.1 L (P02A7=cylinder4 fuel trim at min ) from the code you would think injector problem but sadly that was not the case , I swapped inj4 with inj1 and still the same problem P02A7 , went toward vacuum and checked all vacuum parts (intake manifold /vacuum resonator/turbo actuator/transducers/vacuum hoses) with no sign of vacuum leaks at all , in fact the system holding 15inch vacuum with no problem at a all , in regards to injectors tested with injector leak test all four injectors are leaking the same amount of fuel so I can't fault them , engine idling is fine / drive fine the only thing is if you cleared that code , you will get the full power of the engine I mean the turbo will be working as it should be until you drive in steady speed like 65miles/hour for 10 to 15 minutes as soon as you take your foot off gas pedal the check light will be trigrad and you will start loosing power specially up hill , the only suspect left for me is o2 sensor , I haven't replaced it yet , but when I disconnected no check engine light show up as if its connected , but am thinking that could be the o2 sensor is faulty thats why when the engine on that steady speed and by the time I let off the gas pedal , the ECU request the oxygen from the o2 sensor and most likely the wrong values from the o2 sensor is the suspect what do you think ? your help is appreciated

[@ticktime6569]

hi, thank you. I'm sorry but honestly I don't think I could help you. You could check the o2 sensor connector voltage and circuit, and the sensor resistance and compare it with specs. Otherwise try to search on the forums (thorugh the error code) or ask in one of them. Good luck for the repair

[@prn-va8243]

Hello and thank you for this really good video! I ve got one question: I have a Mercedes W204 2011 Automatik, I need to change the DPF Sensor on it. After I do the change, do I need to reset the sensor via pc/tester or is it automatically done by only changing the sensor? Best Regards.

[@ticktime6569]

Thank you. No need to reset anything. Only erase fault codes. Good luck

[@ihtishamarshad1294]

Very good video , you explained very well. I have a question, i have a glk x204 220cdi 2011 and it has 118000km . Today i have changed oil and filters and i have also changed diesel filter . But after that when I completed the service, I went for a try but it seems car have to power and i turn off the car and started again and come engine light on . My obdi shows P2454 dtc sensor A . I thought maybe i just bought the wrong diesel filter and i have removed and installed the old original. But the problem continues. Can you please help me ? Thanks

[@ticktime6569]

It's probably the faulty sensor I showed in the video. At 118k km it's plausible. Good luck

[@ihtishamarshad1294]

Thank you so much for your reply , but it happened when I changed the diesel filter. Before that everything was going good.

[@ticktime6569]

@@ihtishamarshad1294 it's could be a coincidence. Anyway check that your diesel filter has the right code. At that mileage the dpf sensors go bad.

[@ihtishamarshad1294]

Yeah could be a coincidence. I thought also maybe I bought the wrong filter but after that i have installed the old one which was the original . But same issue.

[@cransaftvalve734]

Do you know if it is necessary to reset the ECU once you change the DPF with the scanner or a regeneration to get the new values from the differential pressure probes?. I have to change it for a new one, it is very saturated.

[@ticktime6569]

No need

[@cransaftvalve734]

@@ticktime6569 OK, thanks.

[@abdulkadir-yg6rf]

Hi great video I really need help 1st I had air intake leak fault code then few days later 2 codes one the boost pressure of turbocharger too low and second was low pressure turbocharger has a malfunction actuator does not close all 3 with eml on. Do u reckon the powerless, limp mode and high revs gears change late all could be sorted just replacing the sensors?? And which sensors will I.need to change please. Would really appreciate your help I can save abit of money at them hard times thanks mate

[@ticktime6569]

Hi, sorry mate but I don't know. You could have a cracked intake manifold or an air leak somewhere. There are some videos on youtube about this but diagnosis is not so easy. Sorry and good luck

[@lambo7767]

I have same problem with my c220cdi 2011. Did you fix yours and what was the fault?thanks

[@bohrora2293]

Check your throttle body first. Not the mainfold.

[@duanehalligan8533]

Did you ever find out what the problem is myns doing same thing

[@zoomerzoomer-jn7rf]

can this failed part cause bad starting ? thanks for the video btw.

[@ticktime6569]

I'm not sure but I'd say no. Thank you :-)

[@nokianeedsuk2119]

Great Video, i have p245900 error code, no other faults codes. COuld this be the issue?

[@ticktime6569]

Hi, try to search in forums if the code corresponds. In description I wrote my codes, they're different. It could be something else, honestly I don't know sorry. Good luck

[@nokianeedsuk2119]

@@ticktime6569 thanks code is related to P245900 The regeneration frequency of the diesel or gasoline particulate filter is not OK. I will check the values as outlined in your comments

[@oussaidelouazzani8407]

Hey mate if you can help me ! I have w204 with OM642 engine, I’m trying to change DPF sensor but I couldn’t find it !

[@ticktime6569]

Sorry but I don't know where it is. Follow dpf and you'll see two rubber hoses from it. Then you'll find the sensor

[@desmonty]

What tool do you use to remove the W204 DPF temperature sensor?

[@ticktime6569]

Egt sensor socket

[@saidysaidysaidy1178]

Was your car going in high revs and delay shifting before changing the sensor

[@ticktime6569]

Yes, on my channel you find a video showing this. Good luck

[@abdulamiraalubaid3056]

can you upload video to clean EGR for the same model please?

[@ticktime6569]

I don't have such a video

[@abdulamiraalubaid3056]

Thank you

[@luang9359]

Hi After changer this sensor need to go mecredes dealer for reprogram it ? Or only clean error it's oki ? Thanks

[@ticktime6569]

Clean the error and go, IMHO. For me and many others worked. Good luck

[@luang9359]

Thanks for your reply Can i ask you some questions ? Actually i have w212 E200 facelift , my car is sometimes fails symptôms. The morning when i take car all it's oki After stop motor, maybe 5 minutes later i Come back to take car , i started motor but like not have turbo , the wheels shift manuel paddle not working only working in automatic , and the engine go very UP tours/min for change shift autômatic and with this no have turbo no have kickdown thé accélération very very slow. After remark this problem i stop motor take out thé key close thé door and open and start again motor all will be normal. Sometimes in slow traffic all normal , After stop to go supermarket start again same problèm... But in slow traffic thé orange lamp motor will be here. After one night the motor lamp will disappear all morning but all day same problèm i have connect OBD they say P0471 problem... Do you have heared this problem already ? Sorry my Bad english Thanks you so much!!!!

[@ticktime6569]

@@luang9359 hi i think it could be the exhaust back pressure sensor. Right near the egr valve. Good luck

[@luang9359]

@@ticktime6569 thanks for your reply Your vidéo it's remplace left sensor and my problem it's right side near egr valve ? Because only P0471 when engine light. Tonight i take it, the Gear shift it's abrupt when they auto change Up down D1-D7... Thanks for your help. Maybe i need changed this 2 pièces ?

[@ticktime6569]

@@luang9359 yes

[@johnminshell6532]

What does this thing do and what are the symptoms to watch for please ?

[@ticktime6569]

CEL and limp mode

[@winbig1]

You need to uplug negative battery cable ?

[@ticktime6569]

No

[@AMG63]

Do you need to disconnect the battery before doing this due to unplugging the ecu ? Thanks

[@ticktime6569]

No need. But if you want you can do it. Good luck

[@AMG63]

@@ticktime6569 I've stripped mine all down now just can't find any of them clic clamp pliers anywhere to remove the sensor

[@ticktime6569]

@@AMG63 sorry I don't understand the problem

[@ticktime6569]

@@AMG63 if you mean you don't have the proper pliers, just use a screwdriver to open the clic clamps.

[@AMG63]

@@ticktime6569 this video has saved me around £350, its fitted and works better than the day I bought it 👍👏 thank you

[@grupinfractionalorganizatp5003]

how you know are defect it ? on tester ?

[@ticktime6569]

Testing it's not immediate. You have check engine light

[@simeunovicm]

Do you need to relearn sensor after replacement?

[@ticktime6569]

No need

[@juho3136]

Hi. My Mercedes give 148A00 code. Do you know what that means?

[@ticktime6569]

Don't remember. Check on google, good luck

[@juho3136]

the number of times the regeneration of the diesel particulate filter was too high is that code. What i sould to do?

[@ticktime6569]

@@juho3136 impossible to say. It could be clogged or it could be a sensor. Check the total ash content and sensors values

[@allanbonnet3270]

Faut il débrancher la batterie svp ?

[@ticktime6569]

Ce n'est pas nécessaire. Bonne chance

[@vasimaftei8778]

I have a similar problem code P245414 and at a service said that it is not from the sensor must be cleaned filter I have 170,000 km

[@ticktime6569]

I know that the Dpf on these cars rarely gets clogged. Probably you only need a forced regen. But I don't know how you've used the car so it's only a supposition :-)

[@vasimaftei8778]

I used a 2km short distance, can you advise yourself to be able to do a regeneration?

[@vasimaftei8778]

@@ticktime6569 I made a diagnosis mercedes XENTRY AND I have error with code P245414 and it says that a short circuit ground, it is possible that only the sensors do not filter?

[@ticktime6569]

@@vasimaftei8778 you shold check also dpf ash content and soot content from Xentry.. If it's over 200% (if I remember well), the regen has to be forced. Check also that B28/8 sensor gives a value between -0.04 bar and +0.04 with engine off (ignition on), and that when engine runs, value varies up to 1.12 bar. You need to do a complete diagnose, anyway if you have 170k km, the sensor won't have long life. Probably it's worth trying to replace it. To start, clear codes and use the car. These sensors are replaced very frequently, usually they won't last too much