Just wanted to add a comment and say you Rock! Your videos are thorough, well edited and VERY much appreciated. My 2004 ML350 washer nozzles were dribbling. Now they make it Rain. Mine were clogged with remnants of my old washer reservoir
Just about replaced both pumps, both had broken output bits where hose goes on, but nozzles barely pushing anything out, so happy i found this vid on the check valves. Thanks for the super thorough video ❤
Thanks so much for this video. Because if this video I was able to get my nozzles working again. Both the check valve the nozzles were clogged. Thanks again for your help.
Ah awesome - I'd just finished following your reservoir video while replacing mine, and couldn't understand why they weren't working. You're amazing. Thank you!!
thanks, i didn't know where the back valve was. I removed the front valve so that the system will work well and now it is perfect, with good pressure. I'll do the same with the rear.
EXCELLENT WRENCH YOU ARE!!! I needed two motors, new hose, but the check valve was the issue. So I guess if I eliminate this check valve, I will get water on my windshield under hard accelration? what else may be issue? I guess I'll take it out and see what happens before I glue it back together! Great calming voice, , you are very knowledgeable THANKs!
Yes, those check valves get clogged rather easily, and once they are clogged, they first greatly reduce the flow to the nozzles, then they'll block flow altogether. As far as I know, the system is just the pumps, hoses, check valves, and sprayers/nozzles, so if you've eliminated the pumps, check valves, and sprayers/nozzles, then I would check the hoses. There might be a leaky hose, or an obstructed/bent hose. Good luck!
Timestamps below, and link to the reservoir replacement video: th-cam.com/video/K8Kf90Z8sUI/w-d-xo.html 00:16 Diagnosis (pumps working, but nozzles are not spraying) 00:50 Start repair for FRONT (windshield) sprayers 01:06 Check valve location for front wipers 01:35 Remove washer nozzle from cowl 02:19 Remove valve from washer hose 04:13 Valve part number (A163 860 01 02) 04:30 How to open the valve 04:51 Open valve with pocket knife 05:38 Clean and reassembling the valve 06:22 Wash out/clear hose of debris 07:39 Why this happened on this ML350 08:17 Clean the washer fluid tank 09:08 Shot of the filter with all the debris removed 10:06 Reinstall valve 10:36 Reinstall washer nozzle 12:26 Reposition washer hose 14:08 Start repair for REAR valve 14:23 Remove trim fasteners 16:14 Location of rear valve 16:35 Remove rear valve 17:10 Wash out/clear hose of debris 18:43 Reinstall rear valve 19:08 Check for flow to back glass 19:20 Reinstall rear trim fasteners Thanks for watching! I hope this video was helpful for you. Good luck with your repair!
When I did washer tank replacement I didn’t even check if my pumps worked , before I knew the windshield pump was bad thinking I didn’t need one I went on eBay & purchased the parts I needed separately from 4 different sellers . new tank , lid , 2 new rubber grommets for pumps ,1 rubber plug , then went and got 2 jugs rainX washer fluid from AutoZone the total cost was $93 for everything, the 2 rubber grommets for the pumps were $15 , little did I know I could have bought 2 grommets & 2 new pumps for $8 each . I hate overlooking shit like this cause in the long run it all adds up Edit ( got lucky & was able to reuse the original sensor & rubber grommet for it as it was the only bit of rubber on the tank not dry rotted )
So does the pump make a noise cuz mine don't I just bought an 06 I probably shouldn't have bout but I drove it and it runs amazing just has a few things this is one
Many thanks for alerting me to the check-valve. One point - how about opening the valve with a small flat blade screwdriver rather than the large knife - I also think a little heat ( got water ) may help prevent the tabs on the valve breaking when lifted. Excellent vid though.
I have put items like this in a small bowl of heated water to soften them up to avoid breaking the older plastic. The heat helps revitalize the plasticizers.
Thanks : ) No, I'm not a specialist: I'm just the family mechanic and there's two W163's in the family, so I've learned to fix a few problems : ) Thanks for watching!
@@L35inColorado you’re welcome. One last question if I may: how do you manage to get all the data and torque specs on this model? I have an 04 ML500 and you can’t get manuals for this car.
@@aptechknowledge The source for the data is the MB WIS (Workshop Information System). I have access to and old version of WIS via an old laptop, but if I need a value, I first search the BenzWorld.org forum (note - it's ".org", not ".com"), because I can do that from my phone anywhere. I search that forum in particular because there's a member there ("43sqd") who has been posting WIS pdf's of various repairs for years - there are dozens and dozens of important WIS pdf's that he's posted for anyone to see, which is really great. Here's a real world example from last night of what I do: Last night I need the torque spec for the power steering pump mounting bolts on a W163. I typed this below into the google search bar: site:www.benzworld.org w163 power steering pump replacement That format is a way of searching a specific site (site:www.benzworld.org") for a specific phrase ("power steering pump replacement"). The first result of that search is this page from the Benzworld.org forum: www.benzworld.org/threads/power-steering-pump-removal-instructions.1883369/ Click on that, and you'll see that 43sqd has posted two pdf's related to the inquiry. The "R&I" means "remove and install". They are both WIS documents. Click on the first and scroll to the last page, and there are the torque specs in Nm. I really don't like the format of WIS: it is very cumbersome and clunkly, and is mostly just words and numbers, very few images. I much prefer Toyota's style of repair manual, which details each step and includes lots of drawings/images. But it does include torque values. If you'd like to buy access to WIS (perhaps a day pass?), I would think there's a way to do it, but I don't know how. MB puts some of the info online, such as this below - you can see it is very cumbersome: manual.startekinfo.com/manual/JSP/e4/9_4/content.jsp But they do post a helpful DTC page here (example, M113 engine): manual.startekinfo.com/manual/JSP/e4/9_4/content.jsp I hope that helps! : )
@@L35inColorado did I ever tell you how amazing you are? Such generosity when it comes to information sharing is humbling. If you ever want to start working on business jets in Utah, I would most definitely recommend you. Something you may want to think about. I specialize on Falcon Jets such as 7X, 8X, 2000LXS, 900LX, etc. I say this not to boast but that you may look them up on here and see what you would be getting into if you even choose that path. God bless you L35 in Colorado for what you’re doing on here.
@@aptechknowledge Great interaction here with L35 in Colorado. Aren't her w163 videos the best - her knowledge / camera / editing inc part # & timestamps are the best I've seen. I see you're an AP for Business Jets - Falcons ? Does this imply that fixing our ML / 163s is so challenging we're now all set up to fix jet turbine aircraft lol ?
I couldn't find the check valve on My ML500 just a small plastic hose link. Replaced both pumps and lines are clear. Can you tell me the part number for the check valve?
Nice presentation L35 in Colorado great explanatory summary.My issue is how on Lords blue earth do I get wee small tab out to clean, mine already knackered by someone. Ebay have had very few but £20 and 14.95 shipping is robbery to me.
Yes, they are ridiculously expensive! As I showed in the video (04:51), I just break the plastic under the tab, using a pocket knife, then lift the broken part and slide the tab under the broken part, then pull the ends apart. Even if you totally break the little part under the tab, you can always tape it together, or even glue it. Thanks for the comment, and good luck!
Thx.. you're great! Mine aren't working and also the tank is broken.. i'll order a new tank and clean amd declogg the nozzles with your video together 👍👍👍
Great! Be sure to check out my other video for the install of the new tank. When you're buying the new tank, remember that there are several versions -- one for models with headlight washers, and different models for the '98 - '01. Have a look at this video to see what I mean: th-cam.com/video/K8Kf90Z8sUI/w-d-xo.html Thanks for your comment, and good luck!
I have an 09 W164. the pump is good. It runs fine on 12V drawing 1.6A. It is not getting 12V. I cannot figure out which relay/fuse powers it. There is NO mention of it on my fuse/relay diagrams. Any toughts, please?
I'm sorry that's happening, and I'm sorry that I missed your comment -- unfortunately, I don't have any information on the W164. If there is not a specific fuse/relay that controls the motor, the motor may be controlled by the AAM, and diagnosing the AAM can be a bit of a headache (at least it is on the W163). Perhaps you can make a new post over at www.benzworld.org (note: "org" not "com") -- there are lots of helpful and highly knowledgeable MB owners there who might be able to figure it out! Good luck!
Great video, thank you very much! I’ve replaced both pumps and the reservoir to find that the old small reservoir pieces that broke are now clogged in the check valve. The rear washer barely worked when I bought the car and now doesn’t work at all. I am assuming there is 1 check valve for the front 3 sprayers and 1 check valve for the rear sprayer, correct? And is the part # good for both of these check valves? Thank you!
Yes, as far as I know, there are just two check valves (one in front, one in back) and they are the same part number. You can also open, clean, and re-use them, as shown in the video. Be sure to use the method to clean the hoses (06:25), otherwise the little bits will just clog up the check valves again, as it takes very little to clog those valves. Good luck : )
Yes, you can do that but I think the check valve serves to prevent contamination from reaching and clogging the three sprayers, and I don't think that there's any other device in the hose to catch contamination except the check valve. So you can remove it and connect the hoses with a barb, but you'd want to be sure your reservoir fluid is clean and there's no contamination that might end up at the sprayers, because the sprayers have such tiny nozzles that they might not be easily cleaning if clogged. I hope that helps!
I try to put any text in a place that's not blocking any important info -- thanks for the feedback, and I'll keep that in mind for future videos. Thanks for watching! : )
About the best and most detailed repair session i've watched Superbly done!
Thank you so much, and thanks for watching! : )
your vlog is my netflix.i learned a lot from you.thank you!
Haha -- thanks! : )
Just wanted to add a comment and say you Rock! Your videos are thorough, well edited and VERY much appreciated. My 2004 ML350 washer nozzles were dribbling. Now they make it Rain. Mine were clogged with remnants of my old washer reservoir
Great job DIY'ing! Thanks for watching and thanks for your comment : )
Thanks for the tips, I did it , sprayed wasn’t working now is working, thanks again!
What a great detailed video with explanations and awesome camera work showing exactly where you need to go!!
Thanks! And thanks for watching! : )
Thanks a lot from me and specially from missus! I had no clue where rear check valve was fitted!!
Yes, it would be very hard to find if we didn't know where to look!
Thanks for watching : )
Just about replaced both pumps, both had broken output bits where hose goes on, but nozzles barely pushing anything out, so happy i found this vid on the check valves. Thanks for the super thorough video ❤
Thanks, and thanks for watching! : )
Thanks so much for this video. Because if this video I was able to get my nozzles working again. Both the check valve the nozzles were clogged. Thanks again for your help.
Wow, that's great - excellent work on your DIY! Thanks for watching : )
I just replace the reservoir and now nothing spraying so this is all very helpful. thanks!
Ah awesome - I'd just finished following your reservoir video while replacing mine, and couldn't understand why they weren't working. You're amazing. Thank you!!
Wow, nice! Great work on your DIY! Thanks for watching : )
Thanks L35! Just finished my reservoir thanks to you! Off to clean the valves!
Great job!! I'm so glad the video helped : )
thanks, i didn't know where the back valve was. I removed the front valve so that the system will work well and now it is perfect, with good pressure. I'll do the same with the rear.
Thank you for the great detailes Video explanation! 😊
Thanks, and thanks for watching! : )
EXCELLENT WRENCH YOU ARE!!! I needed two motors, new hose, but the check valve was the issue. So I guess if I eliminate this check valve, I will get water on my windshield under hard accelration? what else may be issue? I guess I'll take it out and see what happens before I glue it back together! Great calming voice, , you are very knowledgeable THANKs!
Yes, those check valves get clogged rather easily, and once they are clogged, they first greatly reduce the flow to the nozzles, then they'll block flow altogether. As far as I know, the system is just the pumps, hoses, check valves, and sprayers/nozzles, so if you've eliminated the pumps, check valves, and sprayers/nozzles, then I would check the hoses. There might be a leaky hose, or an obstructed/bent hose. Good luck!
Thank you again, i learned a lot from you.
Thanks for watching! : )
Timestamps below, and link to the reservoir replacement video:
th-cam.com/video/K8Kf90Z8sUI/w-d-xo.html
00:16 Diagnosis (pumps working, but nozzles are not spraying)
00:50 Start repair for FRONT (windshield) sprayers
01:06 Check valve location for front wipers
01:35 Remove washer nozzle from cowl
02:19 Remove valve from washer hose
04:13 Valve part number (A163 860 01 02)
04:30 How to open the valve
04:51 Open valve with pocket knife
05:38 Clean and reassembling the valve
06:22 Wash out/clear hose of debris
07:39 Why this happened on this ML350
08:17 Clean the washer fluid tank
09:08 Shot of the filter with all the debris removed
10:06 Reinstall valve
10:36 Reinstall washer nozzle
12:26 Reposition washer hose
14:08 Start repair for REAR valve
14:23 Remove trim fasteners
16:14 Location of rear valve
16:35 Remove rear valve
17:10 Wash out/clear hose of debris
18:43 Reinstall rear valve
19:08 Check for flow to back glass
19:20 Reinstall rear trim fasteners
Thanks for watching! I hope this video was helpful for you.
Good luck with your repair!
Good job on this video and thank you for posting it
Thanks, and thanks for watching! : )
When I did washer tank replacement I didn’t even check if my pumps worked , before I knew the windshield pump was bad thinking I didn’t need one I went on eBay & purchased the parts I needed separately from 4 different sellers . new tank , lid , 2 new rubber grommets for pumps ,1 rubber plug , then went and got 2 jugs rainX washer fluid from AutoZone the total cost was $93 for everything, the 2 rubber grommets for the pumps were $15 , little did I know I could have bought 2 grommets & 2 new pumps for $8 each . I hate overlooking shit like this cause in the long run it all adds up
Edit ( got lucky & was able to reuse the original sensor & rubber grommet for it as it was the only bit of rubber on the tank not dry rotted )
Danke!
Danke! Thank you too! : )
Very good and informative
Thank you so much for your video, help me a lot
Thanks for watching! : )
So does the pump make a noise cuz mine don't I just bought an 06 I probably shouldn't have bout but I drove it and it runs amazing just has a few things this is one
Many thanks for alerting me to the check-valve. One point - how about opening the valve with a small flat blade screwdriver rather than the large knife - I also think a little heat ( got water ) may help prevent the tabs on the valve breaking when lifted. Excellent vid though.
Yes, that's a great tip about opening the valve! Thanks for sharing : )
I have put items like this in a small bowl of heated water to soften them up to avoid breaking the older plastic. The heat helps revitalize the plasticizers.
how do you loosen the black cowl to gain access to the check valve, I see yours is already loose, I am about to do mine and do not know the procedure
شكرا جزيلا لكي
شكرا لمشاهدتك!
Excellent, again! Good info, even if its for a different purpose. Are you a W163 specialist or Mercedes specialized?
Thanks : ) No, I'm not a specialist: I'm just the family mechanic and there's two W163's in the family, so I've learned to fix a few problems : ) Thanks for watching!
@@L35inColorado you’re welcome. One last question if I may: how do you manage to get all the data and torque specs on this model? I have an 04 ML500 and you can’t get manuals for this car.
@@aptechknowledge The source for the data is the MB WIS (Workshop Information System). I have access to and old version of WIS via an old laptop, but if I need a value, I first search the BenzWorld.org forum (note - it's ".org", not ".com"), because I can do that from my phone anywhere.
I search that forum in particular because there's a member there ("43sqd") who has been posting WIS pdf's of various repairs for years - there are dozens and dozens of important WIS pdf's that he's posted for anyone to see, which is really great. Here's a real world example from last night of what I do:
Last night I need the torque spec for the power steering pump mounting bolts on a W163. I typed this below into the google search bar:
site:www.benzworld.org w163 power steering pump replacement
That format is a way of searching a specific site (site:www.benzworld.org") for a specific phrase ("power steering pump replacement"). The first result of that search is this page from the Benzworld.org forum:
www.benzworld.org/threads/power-steering-pump-removal-instructions.1883369/
Click on that, and you'll see that 43sqd has posted two pdf's related to the inquiry. The "R&I" means "remove and install". They are both WIS documents. Click on the first and scroll to the last page, and there are the torque specs in Nm.
I really don't like the format of WIS: it is very cumbersome and clunkly, and is mostly just words and numbers, very few images. I much prefer Toyota's style of repair manual, which details each step and includes lots of drawings/images. But it does include torque values.
If you'd like to buy access to WIS (perhaps a day pass?), I would think there's a way to do it, but I don't know how. MB puts some of the info online, such as this below - you can see it is very cumbersome:
manual.startekinfo.com/manual/JSP/e4/9_4/content.jsp
But they do post a helpful DTC page here (example, M113 engine):
manual.startekinfo.com/manual/JSP/e4/9_4/content.jsp
I hope that helps! : )
@@L35inColorado did I ever tell you how amazing you are? Such generosity when it comes to information sharing is humbling. If you ever want to start working on business jets in Utah, I would most definitely recommend you. Something you may want to think about. I specialize on Falcon Jets such as 7X, 8X, 2000LXS, 900LX, etc. I say this not to boast but that you may look them up on here and see what you would be getting into if you even choose that path. God bless you L35 in Colorado for what you’re doing on here.
@@aptechknowledge
Great interaction here with L35 in Colorado.
Aren't her w163 videos the best - her knowledge / camera / editing inc part # & timestamps are the best I've seen.
I see you're an AP for Business Jets - Falcons ?
Does this imply that fixing our ML / 163s is so challenging we're now all set up to fix jet turbine aircraft lol ?
Good job! Thank you very much!
Thank you for helpful video;)
Thanks, and thanks for watching! : )
I couldn't find the check valve on My ML500 just a small plastic hose link. Replaced both pumps and lines are clear. Can you tell me the part number for the check valve?
Very excellent definition 🌹🌹
Thank you, and thanks for watching! : )
Nice presentation L35 in Colorado great explanatory summary.My issue is how on Lords blue earth do I get wee small tab out to clean, mine already knackered by someone.
Ebay have had very few but £20 and 14.95 shipping is robbery to me.
Yes, they are ridiculously expensive! As I showed in the video (04:51), I just break the plastic under the tab, using a pocket knife, then lift the broken part and slide the tab under the broken part, then pull the ends apart. Even if you totally break the little part under the tab, you can always tape it together, or even glue it.
Thanks for the comment, and good luck!
Could that valve being clogged also cause the reae washer not to spray? Neither my front nor back one is spraying, but pumps are working
Thx.. you're great!
Mine aren't working and also the tank is broken.. i'll order a new tank and clean amd declogg the nozzles with your video together 👍👍👍
Great! Be sure to check out my other video for the install of the new tank. When you're buying the new tank, remember that there are several versions -- one for models with headlight washers, and different models for the '98 - '01. Have a look at this video to see what I mean:
th-cam.com/video/K8Kf90Z8sUI/w-d-xo.html
Thanks for your comment, and good luck!
@@L35inColorado
Many many thx 🙏🙏
This made the install a lot easier!
Thanks so much for your great videos!!
Let me just say how nice it is to hear a girl and not some crusty old dude lmao
My Toyota Opah is really consuming fuel kindly assist me in this..
Thanks for the video
You're welcome! I hope the video helps, and good luck!
Good work
Thanks, and thanks for watching! : )
I have an 09 W164. the pump is good. It runs fine on 12V drawing 1.6A. It is not getting 12V. I cannot figure out which relay/fuse powers it. There is NO mention of it on my fuse/relay diagrams. Any toughts, please?
I'm sorry that's happening, and I'm sorry that I missed your comment -- unfortunately, I don't have any information on the W164. If there is not a specific fuse/relay that controls the motor, the motor may be controlled by the AAM, and diagnosing the AAM can be a bit of a headache (at least it is on the W163). Perhaps you can make a new post over at www.benzworld.org (note: "org" not "com") -- there are lots of helpful and highly knowledgeable MB owners there who might be able to figure it out! Good luck!
Great video, thank you very much! I’ve replaced both pumps and the reservoir to find that the old small reservoir pieces that broke are now clogged in the check valve. The rear washer barely worked when I bought the car and now doesn’t work at all. I am assuming there is 1 check valve for the front 3 sprayers and 1 check valve for the rear sprayer, correct? And is the part # good for both of these check valves? Thank you!
Yes, as far as I know, there are just two check valves (one in front, one in back) and they are the same part number. You can also open, clean, and re-use them, as shown in the video. Be sure to use the method to clean the hoses (06:25), otherwise the little bits will just clog up the check valves again, as it takes very little to clog those valves. Good luck : )
Great job good vi!!deo
Thank you!
Thank you very much!
You're welcome, thanks for your comment!
Thanks for outlining this work. Is the stupid check valve necessary? Can you just put in a straight barbed connector?
Yes, you can do that but I think the check valve serves to prevent contamination from reaching and clogging the three sprayers, and I don't think that there's any other device in the hose to catch contamination except the check valve. So you can remove it and connect the hoses with a barb, but you'd want to be sure your reservoir fluid is clean and there's no contamination that might end up at the sprayers, because the sprayers have such tiny nozzles that they might not be easily cleaning if clogged. I hope that helps!
Why do you run text infront of video it makes it hard to see whats happening on the video? Could you run the text under the video?
I try to put any text in a place that's not blocking any important info -- thanks for the feedback, and I'll keep that in mind for future videos. Thanks for watching! : )
You just showed how many other multiple uses for black tape there is. Lol.
Thank you so much for the video
Thanks for watching! : )