Store codes 0016/0017 and 0722
Thread Starter
Senior Member
Joined: Apr 2013
Posts: 339
Likes: 66
1998 E300TD
Store codes 0016/0017 and 0722
Hi All,
I picked up a 2009 ML350 a few months ago, that had been sitting for a number of years….and it took a good deal of work to get it running/driving again. I finally got to take it on its maiden voyage today (about 40miles round trip). Before then I was just doing 2-3 mile trips around the garage, before the trip I had no current or stored codes. After I got back from the trip, I didn’t have a check engine light or limp mode from the transmission but decided to scan the car just in case. I got a p0016/17 code as stored and a p0722 as stored.
Here are my questions:
P0016/17 - The engine range is a good deal past the cutoff for the balance shaft issue. I had the code when I first got the engine running and chocked it up to old magnets or failing cps sensors. I changed both magnets and sensors on Bank 1 just in case. I don’t have a check engine light and the engine runs smoothly. Should I just presume this is a one-off since it hasn’t been driven in 2.5 years and the cam adjusters may have been sticky and will hopefully loosen up after some more driving?
P0722 - Transmission is shifting smooth and no issues, no limp mode. I have a couple of ESB codes (left rear wheel speed sensor mostly). Chances these two are correlated?
As always, thanks for any help!
I picked up a 2009 ML350 a few months ago, that had been sitting for a number of years….and it took a good deal of work to get it running/driving again. I finally got to take it on its maiden voyage today (about 40miles round trip). Before then I was just doing 2-3 mile trips around the garage, before the trip I had no current or stored codes. After I got back from the trip, I didn’t have a check engine light or limp mode from the transmission but decided to scan the car just in case. I got a p0016/17 code as stored and a p0722 as stored.
Here are my questions:
P0016/17 - The engine range is a good deal past the cutoff for the balance shaft issue. I had the code when I first got the engine running and chocked it up to old magnets or failing cps sensors. I changed both magnets and sensors on Bank 1 just in case. I don’t have a check engine light and the engine runs smoothly. Should I just presume this is a one-off since it hasn’t been driven in 2.5 years and the cam adjusters may have been sticky and will hopefully loosen up after some more driving?
P0722 - Transmission is shifting smooth and no issues, no limp mode. I have a couple of ESB codes (left rear wheel speed sensor mostly). Chances these two are correlated?
As always, thanks for any help!
Thread Starter
Senior Member
Joined: Apr 2013
Posts: 339
Likes: 66
1998 E300TD
0016/0017 are camshaft correlation codes and are usually seen as the start of a stretched timing chain of failed balance shaft.
0722 is speed sensor which is usually a failed conductor plate on the valve body.
0722 is speed sensor which is usually a failed conductor plate on the valve body.
MBWorld Fanatic!
Joined: Jun 2010
Posts: 2,766
Likes: 632
From: Emmett, ID, USA
2007 GL450
On the 16 and 17 codes, all you can do is wait and see. There is a chance they were due to the magnets and/or the sensors.
I doubt the wheel sensor codes are correlated to the 0722 code.
Do a fluid & filter change every 30K miles. The 722.9 is a fine transmission, but thanks to MB, this maintenance is often neglected.
I doubt the wheel sensor codes are correlated to the 0722 code.
Do a fluid & filter change every 30K miles. The 722.9 is a fine transmission, but thanks to MB, this maintenance is often neglected.
Thread Starter
Senior Member
Joined: Apr 2013
Posts: 339
Likes: 66
1998 E300TD
On the 16 and 17 codes, all you can do is wait and see. There is a chance they were due to the magnets and/or the sensors.
I doubt the wheel sensor codes are correlated to the 0722 code.
Do a fluid & filter change every 30K miles. The 722.9 is a fine transmission, but thanks to MB, this maintenance is often neglected.
I doubt the wheel sensor codes are correlated to the 0722 code.
Do a fluid & filter change every 30K miles. The 722.9 is a fine transmission, but thanks to MB, this maintenance is often neglected.
I did find some info on Corcuit Board medics when looking for conductor repair costs that said that wheel speed sensors can trigger false conductor sensor codes so I’m replacing that today.
Last edited by 6_Myles; Jun 26, 2025 at 10:36 AM.
MBWorld Fanatic!
Joined: Jun 2010
Posts: 2,766
Likes: 632
From: Emmett, ID, USA
2007 GL450
Well, I learn something new every day. Thanks. I take it you had ESP errors that corresponded to what Circuit Board Medics is talking about? Regardless, I understand the wheel speed sensors are pretty cheap and easy to replace.
Thread Starter
Senior Member
Joined: Apr 2013
Posts: 339
Likes: 66
1998 E300TD
I did too. And between the dead battery, shorted front sam, shorted ecu, and it sitting for 2.5yrs, I’ve had just about every code possible on this car. So I’ve been trying to tackle them in a more methodical approach.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
7 Craziest Things AMG Gas Ever Built
Verdad Gallardo
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
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
