S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

I finally bought it Fellas!

Thread Tools
 
Search this Thread
 
Rating: Thread Rating: 4 votes, 4.25 average.
 
Old Mar 18, 2016 | 11:55 AM
  #826  
DaveW68's Avatar
MBWorld Fanatic!
Veteran: Army
10 Year Member
Loved
Community Favorite
 
Joined: Nov 2014
Posts: 4,242
Likes: 628
From: Chicago burbs
2015 S550
Originally Posted by WillieMack
Seriously out of the flagship German luxo sedans, the D3 Audi A8 (preferably 07+) is the way to go. Out of the S class and 7 series, it is far more reliable, better AWD system (Quattro), sound system, lighter in pounds, more fuel efficient, cheaper new MSRP, functional and ages better.

Mercedes and BMW aren't what they used to be when it comes to reliability while Audi has gotten much better in recent years. Audi's 4.2 V8 and transmission are nearly bulletproof and there are ton's of daily driver D3 A8's approaching 200k miles or have surpassed it with no issues, oil leaks, electronic problems etc. Nothing but regular wear and tear items.
The engines in the S550 are pretty much bulletproof too. The earlier MB developed 7 speed trannys had a couple of known issues, but outside of that, the powertrain components are very solid. Where German sedans really suffer, including Audi, is with their electronic components and software. They should really be farming that work out to Japan to develop, but instead they do it themselves, which they haven't mastered like the Japanese. Most issues with the these cars can be pinpointed to the electronics. MB may over engineer the bodies, engines, transmissions, safety, and electrical systems of their cars, but most of their problems have to do with their overly complicated electrical systems.

MB is almost always the first to develop new and important systems for cars. The W221 had several industry firsts, just like previous generations of S-class models. But then the Japanese reverse develop the systems for their cars and make them more reliable. Even American and Korean cars are now almost as reliable as the Japanese.
Reply
Old Mar 18, 2016 | 12:05 PM
  #827  
xpl0sive's Avatar
MBWorld Fanatic!
 
Joined: Mar 2008
Posts: 1,230
Likes: 32
From: Vancouver, BC
CLS55 AMG
Some reading material for you in case you decide to change the trans fluid yourself. I highly doubt the transmission would work after that, but hey you never know

https://mbworld.org/forums/c-class-w...ce-thread.html

a gread DIY from the "other" forum

http://www.benzworld.org/forums/w221...7g-tronic.html

Last edited by xpl0sive; Mar 18, 2016 at 12:09 PM.
Reply
Old Mar 18, 2016 | 12:08 PM
  #828  
mercedesbenzs55's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Dec 2015
Posts: 1,381
Likes: 32
Acura TL 2008 - Acura MDX 2012
Are you sure? The tranny change kit will be here this after noon.

I'm going to buy an infrared thermometer($11 at walmart), so no star needed for this.

Last edited by mercedesbenzs55; Mar 18, 2016 at 12:11 PM.
Reply
Old Mar 18, 2016 | 12:15 PM
  #829  
superpop's Avatar
MBWorld Fanatic!
10 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Nov 2015
Posts: 1,689
Likes: 824
From: Newcastle, WA
2019 S63 4Matic+, 2018 E400 Cabrio, wardens car.
Originally Posted by mercedesbenzs55
Thank you Quadcam ,I will change the tranny and differential oil today. Aswell as bleed the brakes. and check the speed sensors.

If it comes down to it I would very much appreciate you offer. I finally got the OBD2 tool, so lets see what can be done with what I currently have.

Thanks again.
You don't just change the tranny fluid on this car, well you can but the odds are high that it will do more damage than good. A good indy shop will do a tranny flush for around 400 bucks and they have the tools to do it. What you are failing to realize is that this is not a typical car that you can easily wrench on, Mercedes did not design this car for shade-tree mechanics, it is a very complex device that requires complex tools and knowledge to properly fix. You are trying to fix gunshot wounds with band-aids.
Reply
Old Mar 18, 2016 | 12:17 PM
  #830  
xpl0sive's Avatar
MBWorld Fanatic!
 
Joined: Mar 2008
Posts: 1,230
Likes: 32
From: Vancouver, BC
CLS55 AMG
Originally Posted by mercedesbenzs55
Are you sure? The tranny change kit will be here this after noon.

I'm going to buy an infrared thermometer($11 at walmart), so no star needed for this.
good luck

a little quote for ya from an actual MB Tech who knows what he's talking about

ANOTHER *HUGE* CAVEAT!!- *DO NOT ATTEMPT THE "I'LL TAKE A LASER TEMPERATURE MEASUREMENT OF THE PAN" TRICK TO GET THE OIL TEMPERATURE!!!" I have a nice, High-End Fluke Laser Thermometer, and what I was measuring at the Pan, and what STAR was Reporting??? It was OFF by a much as 10 C!!!! ***YOU MUST BE EXACTLY ON TARGET TEMP TO DO THIS JOB!!!***, and the Car must be **LEVEL**, so you will have to have it on 4 equal Ramps/Jack-Stands.
Reply
Old Mar 18, 2016 | 12:20 PM
  #831  
alx's Avatar
alx
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 4,268
Likes: 253
Originally Posted by xpl0sive
you can't change the tranny fluid without STAR.
Sure you can. A cheap infrared thermometer is good enough for taking atf temp readings. I have done comparison out of pure curiosity and temps both taken by infrared and star were within couple degrees. You move around the bottom of the pan the the Ir termometer and you find the spot with the highest temp and you read there. The one thing to remember is that most ir thermometers are off so prior to using it you need to measure a known temp object and know your correction factor. Also the surface of what you read makes a difference. Thus apply a few strips of electric tape to create a black non- reflective uniform surface and point ir thermometer on it.

Last edited by alx; Mar 18, 2016 at 12:30 PM.
Reply
Old Mar 18, 2016 | 12:26 PM
  #832  
alx's Avatar
alx
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 4,268
Likes: 253
Originally Posted by mercedesbenzs55
I used the OBD2 scanner.

It shows me:
ECU Volts: 10.17
Voltage off 11.59/Voltage on 10.25

Error Codes:
P0024
P0014
P0562
P0022
P0300
P0306
P0305
At rest with accessories running you should be at 12.x Volts. Engine running you should be at 14.3-14.7 Volts. Your battery or charging system is suspect.

Last edited by alx; Mar 18, 2016 at 12:29 PM.
Reply
Old Mar 18, 2016 | 12:30 PM
  #833  
DaveW68's Avatar
MBWorld Fanatic!
Veteran: Army
10 Year Member
Loved
Community Favorite
 
Joined: Nov 2014
Posts: 4,242
Likes: 628
From: Chicago burbs
2015 S550
I admire Benzs55's drive to fix his car by himself. But he's finding out the hard way that he really needs to spend the money to have a professional diagnose and repair all of the issues. Everything he tries to fix, he makes worse or breaks more. It even seems that he messed up a simple battery swap by possibly touching the battery lead to the car body.

He needs to stop spending money on parts and equipment for his nearly dead 9 year old wreck and let a real mechanic with the right tools diagnose it so he can get a good idea on how much money it's going to take to make the car right. He can then decide whether it's worth spending the money to fix all of the broken issues, or dump it or part it out before diving into all of body and frame work.

I think spending $500 on a proper diagnosis would be money well spent before he breaks anything else trying to torque on it himself without the proper knowledge of how everything works. He's confusing this car with a 1970 Chevy.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old Mar 18, 2016 | 12:34 PM
  #834  
MrRat's Avatar
Member
 
Joined: Nov 2007
Posts: 204
Likes: 18
From: Connecticut
2018 E400 Coupe | 2021 Volvo XC40 Recharge
Ecu voltage looks way too low, but I lack experience with this platform. I would expect voltage to be approximately 14 volts when running, 12.6 volts or so when on battery power alone.
Reply
Old Mar 18, 2016 | 12:36 PM
  #835  
mercedesbenzs55's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Dec 2015
Posts: 1,381
Likes: 32
Acura TL 2008 - Acura MDX 2012
Originally Posted by alx
At rest with accessories running you should be at 12.x Volts. Engine running you should be at 14.3-14.7 Volts. Your battery or charging system is suspect.
I had the voltometer hooked up wrong.

Front battery(starter battery):
Off:12v
On(with headlights on aswell):12.5-12.8v

Rear battery(Brand new accessory Batt.)
Off:10.54v(This is after a turning off the car and restrting it 20 seconds later)
On(with headlights):9.24v

Do I need a new alternator? This maybe what my Battery light means/Why my comand shuts off thinking the engine is off(goes into safe mode)/Why my speedo flickers when the engine struggles..

Last edited by mercedesbenzs55; Mar 18, 2016 at 12:53 PM.
Reply
Old Mar 18, 2016 | 12:44 PM
  #836  
mercedesbenzs55's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Dec 2015
Posts: 1,381
Likes: 32
Acura TL 2008 - Acura MDX 2012
Originally Posted by DaveW68
I admire Benzs55's drive to fix his car by himself. But he's finding out the hard way that he really needs to spend the money to have a professional diagnose and repair all of the issues. Everything he tries to fix, he makes worse or breaks more. It even seems that he messed up a simple battery swap by possibly touching the battery lead to the car body.

He needs to stop spending money on parts and equipment for his nearly dead 9 year old wreck and let a real mechanic with the right tools diagnose it so he can get a good idea on how much money it's going to take to make the car right. He can then decide whether it's worth spending the money to fix all of the broken issues, or dump it or part it out before diving into all of body and frame work.

I think spending $500 on a proper diagnosis would be money well spent before he breaks anything else trying to torque on it himself without the proper knowledge of how everything works. He's confusing this car with a 1970 Chevy.
Dave, the issues with the MIL,ABS,battery light were there before the battery change. So lets take new issues after battery change out of the equation.

I am not selling this car. I'm not going to a pro to figure out if "its worth me keeping". I'll take it to a pro if need be to figure out what problems I have that I was not able to figure out.

I can figure these issues out with the help of MBworld members.

Last edited by mercedesbenzs55; Mar 18, 2016 at 12:51 PM.
Reply
Old Mar 18, 2016 | 12:46 PM
  #837  
MrRat's Avatar
Member
 
Joined: Nov 2007
Posts: 204
Likes: 18
From: Connecticut
2018 E400 Coupe | 2021 Volvo XC40 Recharge
That accessory battery needs to be charged or is defective.
Please note that the car is highly reliant on proper voltages. Once you sort that out you may find that it addresses most, if not all of your issues.

Just to be clear, the battery you just put in the trunk should be a fresh (Recent manf date) fully charged (12.8v or so) by an AGM charger. A non AGM charger can easily damage or fail to charge an AGM battery. Your car will not charge the accessory battery at 10.4V, it will just indicate a failed battery.

It is a bad idea to change the transmission fluid at this time. You would be adding another variable to your current issues. Sort out the voltage/ battery issue first. Then move on to the transmission fluid change once you've settled the electrical issue.

From a site about batteries:
Digital Voltmeters should read as the voltage is shown in this document. The sealed AGM and Gel-Cell battery voltage (full charged) will be slightly higher in the 12.8 to 12.9 ranges. If you have voltage readings in the 10.5 volts range on a charged battery, that typically indicates a shorted cell. - See more at: https://www.batterystuff.com/kb/arti....YJKY0cDF.dpuf

Last edited by MrRat; Mar 18, 2016 at 01:25 PM.
Reply
Old Mar 18, 2016 | 01:06 PM
  #838  
Abrown3mtg's Avatar
Super Member
 
Joined: May 2015
Posts: 600
Likes: 45
From: Minneapolis, MN/Breckenridge, CO
2010 E550 4Matic Sport P2
Originally Posted by MrRat
That accessory battery needs to be charged or is defective.
Please note that the car is highly reliant on proper voltages. Once you sort that out you may find that it addresses most, if not all of your issues.

From a site about batteries:
Digital Voltmeters should read as the voltage is shown in this document. The sealed AGM and Gel-Cell battery voltage (full charged) will be slightly higher in the 12.8 to 12.9 ranges. If you have voltage readings in the 10.5 volts range on a charged battery, that typically indicates a shorted cell. - See more at: https://www.batterystuff.com/kb/arti....YJKY0cDF.dpuf
Correct! Mb55, pull the front battery out of the car. Take it to any auto shop. They will test it for you for free. See if it is bad. Of so, replace it. I would highly suggest you not try and change the transmission fluid. At least not at this point. If you are mistaking gauges, hooking up volt meters backward, etc, I would not risk attempting a difficult and highly sensitive fluid change that WILL destroy a 7k dollar transmission if not done correctly. You are better off with 80k mile fluid in there than brand new fluid at the wrong capacity.

Steps:
1.) have the front/primary battery tested. I will give a 95% probability that it is your problem.
2.) Have the car scanned with a Benz computer,
3.) Off to the rack
Reply
Old Mar 18, 2016 | 01:13 PM
  #839  
nycphotography's Avatar
MBWorld Fanatic!
 
Joined: Sep 2013
Posts: 1,185
Likes: 42
'15 T&C & '14 SL63
Originally Posted by Abrown3mtg
You are better off with 80k mile fluid in there than brand new fluid at the wrong capacity.

Steps:
1.) have the front/primary battery tested. I will give a 95% probability that it is your problem.
2.) Have the car scanned with a Benz computer,
3.) Off to the rack
Absent any evidence to support otherwise, this is absolutely correct in the short term.

Get the tranny serviced before you put any miles on the car... but only AFTER everything else is fixed.
Reply
Old Mar 18, 2016 | 01:14 PM
  #840  
superpop's Avatar
MBWorld Fanatic!
10 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Nov 2015
Posts: 1,689
Likes: 824
From: Newcastle, WA
2019 S63 4Matic+, 2018 E400 Cabrio, wardens car.
This sounds like an issue with the muffler bearings. Have you checked those yet.
Reply
Old Mar 18, 2016 | 01:17 PM
  #841  
mercedesbenzs55's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Dec 2015
Posts: 1,381
Likes: 32
Acura TL 2008 - Acura MDX 2012
Originally Posted by superpop
This sounds like an issue with the muffler bearings. Have you checked those yet.
I haven't heard that one in years!

Ok, off to get a new battery.

Last edited by mercedesbenzs55; Mar 18, 2016 at 02:07 PM.
Reply
Old Mar 18, 2016 | 01:21 PM
  #842  
Abrown3mtg's Avatar
Super Member
 
Joined: May 2015
Posts: 600
Likes: 45
From: Minneapolis, MN/Breckenridge, CO
2010 E550 4Matic Sport P2
Originally Posted by mercedesbenzs55
Lol! I haven't heard that one in years!

Ok, off to get a new battery.
Take your old primary/front battery with you. Have it bench tested. You will also need it as a "core" which is kept by the auto shop. (Or you pay more). By testing it first, you can determine if it is in fact bad before sticking the new one back in.
Reply
Old Mar 18, 2016 | 01:41 PM
  #843  
alx's Avatar
alx
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 4,268
Likes: 253
Front battery drives abs (initialization) and engine. Insufficient capacity will result in "engine will shut off in x minutes" messages, esp / abs errors and general issues.
Reply
Old Mar 18, 2016 | 01:42 PM
  #844  
WillieMack's Avatar
Member
10 Year Member
Photogenic
Liked
 
Joined: Feb 2015
Posts: 178
Likes: 56
Mayback
Originally Posted by mercedesbenzs55
Dave, the issues with the MIL,ABS,battery light were there before the battery change. So lets take new issues after battery change out of the equation.

I am not selling this car. I'm not going to a pro to figure out if "its worth me keeping". I'll take it to a pro if need be to figure out what problems I have that I was not able to figure out.

I can figure these issues out with the help of MBworld members.

Reply
Old Mar 18, 2016 | 01:43 PM
  #845  
xpl0sive's Avatar
MBWorld Fanatic!
 
Joined: Mar 2008
Posts: 1,230
Likes: 32
From: Vancouver, BC
CLS55 AMG
don't forget new blinker fluid while you're at it
Reply
Old Mar 18, 2016 | 02:14 PM
  #846  
Mike5215's Avatar
MBWorld Fanatic!
 
Joined: May 2008
Posts: 7,653
Likes: 560
2016 C300
Originally Posted by nycphotography
Absent any evidence to support otherwise, this is absolutely correct in the short term.

Get the tranny serviced before you put any miles on the car... but only AFTER everything else is fixed.
Concur. Sometimes when you get an avalanche of errors from a bunch of unrelated systems it's because none of the control units are getting proper voltage and they start spitting out nonsense. Sometimes just a loose battery cable can cause it (which might be why it starts ok, but gets intermittently flakey on the road as the cable gets jostled.)
Reply
Old Mar 18, 2016 | 02:30 PM
  #847  
Quadcammer's Avatar
MBWorld Fanatic!
 
Joined: Dec 2006
Posts: 4,949
Likes: 39
From: Clifton, NJ
96 and 08 911 turbos
mother of god, what is up with those voltages.

A battery at 10.x volts is absolutely dead.

Didn't you just buy this?

Also, if your voltage drops when its running, you likely have an alternator problem.

Like these gentlemen said though, proper voltage is absolutely key here. Don't do anything else until you have a good battery.
Reply
Old Mar 18, 2016 | 02:37 PM
  #848  
DaveW68's Avatar
MBWorld Fanatic!
Veteran: Army
10 Year Member
Loved
Community Favorite
 
Joined: Nov 2014
Posts: 4,242
Likes: 628
From: Chicago burbs
2015 S550
Originally Posted by mercedesbenzs55
I'll take it to a pro if need be to figure out what problems I have that I was not able to figure out.

I can figure these issues out with the help of MBworld members.
Oh boy!!


Reply
Old Mar 18, 2016 | 02:38 PM
  #849  
mercedesbenzs55's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Dec 2015
Posts: 1,381
Likes: 32
Acura TL 2008 - Acura MDX 2012
Costless auto parts didnt have it, I'm omw to MB of portland for the battery. $250 :o
Reply
Old Mar 18, 2016 | 02:44 PM
  #850  
DaveW68's Avatar
MBWorld Fanatic!
Veteran: Army
10 Year Member
Loved
Community Favorite
 
Joined: Nov 2014
Posts: 4,242
Likes: 628
From: Chicago burbs
2015 S550
Originally Posted by mercedesbenzs55
Costless auto parts didnt have it, I'm omw to MB of portland for the battery. $250 :o
Since you're going there any way, how about having it towed there instead and let them properly diagnose your car. Forum members trying to advise a guy with zero automotive knowledge likely isn't going to get your car running like a champ. You're always trying to think 5 steps ahead, but you don't even understand the original problem. I fear for yours and your family's safety regarding this project. I hope you don't burn your car and house to the ground because of your stubbornness to listen to logic.
Reply


You have already rated this thread Rating: Thread Rating: 4 votes, 4.25 average.


All times are GMT -4. The time now is 04:16 PM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE