Still Having issues clearing P0410 code 2004 E320
Thread Starter
Junior Member
Joined: Jan 2017
Posts: 18
Likes: 0
2004 Mercedes E320
Still Having issues clearing P0410 code 2004 E320
Okay, gang and DIYers, I'm having a continuing issue with clearing my P0410 code off my 2004 E320. So far, I've installed a new secondary air pump, replaced the 2 check valves, replaced the solenoid, replaced the relay, inspected and replaced cracked tubing, yet I still keep getting the CEL every 100 miles. I would really appreciated some guidance and assistance in what my next steps should be. It was recommended that I change the EGR valve, which I will do this weekend, but this has really got me stumped. Otherwise, at 153k miles, the car is in great shape. On another issue, can someone tell me how difficult it would be to change the lower ball joints on my car. I'm starting to get a rattle each time I go over bumps. Thanks, in advance, for your support and assistance.
Newbie
Joined: Jul 2016
Posts: 3
Likes: 1
09 GL320, 04 E320, 04 SLK 32 amg
Baumnutde, Have U found your 410 culprit?
I have 2004 E320 with 0410 code.
If U go into activations or any screen on a scanner that shows both front o2 sensors
they should drop below 40mv smartly with air pump on
I replaced the r/f o2 about 3 years ago. Now it's not dropping below 80mv
I suspect the internal air injection passage in head is plugged
Will try a cleaner soak before head removal. Dont like the idea of blowing the carbon into the cylinders
buuuuut what r u gonna do. Maybe I will pull plugs first in hopes of blowing it out.
By the way she has 183K
I have 2004 E320 with 0410 code.
If U go into activations or any screen on a scanner that shows both front o2 sensors
they should drop below 40mv smartly with air pump on
I replaced the r/f o2 about 3 years ago. Now it's not dropping below 80mv
I suspect the internal air injection passage in head is plugged
Will try a cleaner soak before head removal. Dont like the idea of blowing the carbon into the cylinders
buuuuut what r u gonna do. Maybe I will pull plugs first in hopes of blowing it out.
By the way she has 183K
Thread Starter
Junior Member
Joined: Jan 2017
Posts: 18
Likes: 0
2004 Mercedes E320
P0410 issue with a twrist
Okay, I replaced some cracked hoses, check valves, solenoid, cleaned up the EGR valve, but still have the 0410 CEL, the interesting part is it only showed up about 190 - 214 miles of driving. I read somewhere that the front oxygen sensors might be the problem, but I don't want to just change the o2 sensors and the problem persists. If anyone has any insight, I would really appreciate your input, this is driving me nuts....Duke
Junior Member
Joined: May 2016
Posts: 34
Likes: 0
2003 E320
I have the same code. So far I've only replaced the relay but I still have the code.
I'm wondering if you hear the secondary air injector pump startup now that you've replaced all the relays, etc. Since I think I still don't hear mine, might have to change the pump. By the way, have you checked the fuse for the air pump? I haven't checked mine yet, I'm wondering where it is located.
I'm wondering if you hear the secondary air injector pump startup now that you've replaced all the relays, etc. Since I think I still don't hear mine, might have to change the pump. By the way, have you checked the fuse for the air pump? I haven't checked mine yet, I'm wondering where it is located.
Junior Member
Joined: May 2016
Posts: 34
Likes: 0
2003 E320
Oh also, lower ball joint isn't too bad, just make sure you support the wheel hub once you pop the joints. You need the ball joint removing and setting tool. I just got a standard one from Princess Auto and it works fine.
Trending Topics
Thread Starter
Junior Member
Joined: Jan 2017
Posts: 18
Likes: 0
2004 Mercedes E320
P0410 issue update
I have the same code. So far I've only replaced the relay but I still have the code.
I'm wondering if you hear the secondary air injector pump startup now that you've replaced all the relays, etc. Since I think I still don't hear mine, might have to change the pump. By the way, have you checked the fuse for the air pump? I haven't checked mine yet, I'm wondering where it is located.
I'm wondering if you hear the secondary air injector pump startup now that you've replaced all the relays, etc. Since I think I still don't hear mine, might have to change the pump. By the way, have you checked the fuse for the air pump? I haven't checked mine yet, I'm wondering where it is located.
duke Roberts
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
Thread Starter
Junior Member
Joined: Jan 2017
Posts: 18
Likes: 0
2004 Mercedes E320
Follow up to P0171, P0174, P0400 codes
Yeah, in answer to your question, I did end up replacing more parts, which included intake manifolds, EGR valve, secondary air pump, new MAF, fuel injector removal and cleaning, removed and cleaned out EGR tube, replaced front 02 sensors. So, even with all that done, I'm now still getting the CEL codes and now hearing a hissing sound from the area of the EGR valve. So, I'm going to remove the EGR and recheck all the vacuum hoses of cracks or splits. This is really staring to get under my skin regarding my 2004 Mercedes E320. I don't know what else to replace. So, it appears I might have to take it to the Indy. Duke
