Dealership reflashed ECU
#1
Super Member
Thread Starter
![Question](https://mbworld.org/forums/images/icons/icon5.gif)
Hello my fellow C63ers.
I took my car into the dealership to get a tire fixed that had a nail in it and also decided to get my oil changed. My service adviser new that I had a tune on my car and I explained to him why the CEL was on. Well I picked up the car and noticed that the CEL was off. At first I was, KEWL. They fixed the CEL lol. Then I got to thinking, maybe they just deleted the code like the performance shop did. So I gave them a call when I got home......NOPE they reflashed the mother ****er.
OK, now ive had my car in for service twice and this is my performance grade on them so far. First visit, left the oil cap off and my car spewed oil all over the engine bay and about caught on fire. Second visit, they reflash my ECU when all I wanted was an oil change and to fix the tire.
Next time I go in there I guess im going to have to walk them through the entire service. Take the oil plug out and drain the oil. put plug back in, take oil cap off, put in 9 qts of mobil 1 0 40w synthetic, but cap back on lol.
Oh well, I guess Im not a prisoner of war getting torchered to death, so things could be worse![Stick Out Tongue](https://mbworld.org/forums/images/smilies/tongue.gif)
Oh ya, and Jerry is out of town till July 11th so I have to wait tell then to get my ECU tuned again, UGG.
I took my car into the dealership to get a tire fixed that had a nail in it and also decided to get my oil changed. My service adviser new that I had a tune on my car and I explained to him why the CEL was on. Well I picked up the car and noticed that the CEL was off. At first I was, KEWL. They fixed the CEL lol. Then I got to thinking, maybe they just deleted the code like the performance shop did. So I gave them a call when I got home......NOPE they reflashed the mother ****er.
OK, now ive had my car in for service twice and this is my performance grade on them so far. First visit, left the oil cap off and my car spewed oil all over the engine bay and about caught on fire. Second visit, they reflash my ECU when all I wanted was an oil change and to fix the tire.
Next time I go in there I guess im going to have to walk them through the entire service. Take the oil plug out and drain the oil. put plug back in, take oil cap off, put in 9 qts of mobil 1 0 40w synthetic, but cap back on lol.
Oh well, I guess Im not a prisoner of war getting torchered to death, so things could be worse
![Stick Out Tongue](https://mbworld.org/forums/images/smilies/tongue.gif)
Oh ya, and Jerry is out of town till July 11th so I have to wait tell then to get my ECU tuned again, UGG.
#2
MBWorld Fanatic!
Hello my fellow C63ers.
I took my car into the dealership to get a tire fixed that had a nail in it and also decided to get my oil changed. My service adviser new that I had a tune on my car and I explained to him why the CEL was on. Well I picked up the car and noticed that the CEL was off. At first I was, KEWL. They fixed the CEL lol. Then I got to thinking, maybe they just deleted the code like the performance shop did. So I gave them a call when I got home......NOPE they reflashed the mother ****er.
OK, now ive had my car in for service twice and this is my performance grade on them so far. First visit, left the oil cap off and my car spewed oil all over the engine bay and about caught on fire. Second visit, they reflash my ECU when all I wanted was an oil change and to fix the tire.
Next time I go in there I guess im going to have to walk them through the entire service. Take the oil plug out and drain the oil. put plug back in, take oil cap off, put in 9 qts of mobil 1 0 40w synthetic, but cap back on lol.
Oh well, I guess Im not a prisoner of war getting torchered to death, so things could be worse![Stick Out Tongue](https://mbworld.org/forums/images/smilies/tongue.gif)
Oh ya, and Jerry is out of town till July 11th so I have to wait tell then to get my ECU tuned again, UGG.
I took my car into the dealership to get a tire fixed that had a nail in it and also decided to get my oil changed. My service adviser new that I had a tune on my car and I explained to him why the CEL was on. Well I picked up the car and noticed that the CEL was off. At first I was, KEWL. They fixed the CEL lol. Then I got to thinking, maybe they just deleted the code like the performance shop did. So I gave them a call when I got home......NOPE they reflashed the mother ****er.
OK, now ive had my car in for service twice and this is my performance grade on them so far. First visit, left the oil cap off and my car spewed oil all over the engine bay and about caught on fire. Second visit, they reflash my ECU when all I wanted was an oil change and to fix the tire.
Next time I go in there I guess im going to have to walk them through the entire service. Take the oil plug out and drain the oil. put plug back in, take oil cap off, put in 9 qts of mobil 1 0 40w synthetic, but cap back on lol.
Oh well, I guess Im not a prisoner of war getting torchered to death, so things could be worse
![Stick Out Tongue](https://mbworld.org/forums/images/smilies/tongue.gif)
Oh ya, and Jerry is out of town till July 11th so I have to wait tell then to get my ECU tuned again, UGG.
![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
Suck though.. but yay for free reflashs from Jerry.
![thumbs](https://mbworld.org/forums/images/smilies/thumbsup.gif)
#4
Senior Member
Join Date: Jul 2002
Location: Bay Area, CA
Posts: 375
Likes: 0
Received 0 Likes
on
0 Posts
2010 C63, 2007 X5
Hello my fellow C63ers.
I took my car into the dealership to get a tire fixed that had a nail in it and also decided to get my oil changed. My service adviser new that I had a tune on my car and I explained to him why the CEL was on. Well I picked up the car and noticed that the CEL was off. At first I was, KEWL. They fixed the CEL lol. Then I got to thinking, maybe they just deleted the code like the performance shop did. So I gave them a call when I got home......NOPE they reflashed the mother ****er.
OK, now ive had my car in for service twice and this is my performance grade on them so far. First visit, left the oil cap off and my car spewed oil all over the engine bay and about caught on fire. Second visit, they reflash my ECU when all I wanted was an oil change and to fix the tire.
Next time I go in there I guess im going to have to walk them through the entire service. Take the oil plug out and drain the oil. put plug back in, take oil cap off, put in 9 qts of mobil 1 0 40w synthetic, but cap back on lol.
Oh well, I guess Im not a prisoner of war getting torchered to death, so things could be worse![Stick Out Tongue](https://mbworld.org/forums/images/smilies/tongue.gif)
Oh ya, and Jerry is out of town till July 11th so I have to wait tell then to get my ECU tuned again, UGG.
I took my car into the dealership to get a tire fixed that had a nail in it and also decided to get my oil changed. My service adviser new that I had a tune on my car and I explained to him why the CEL was on. Well I picked up the car and noticed that the CEL was off. At first I was, KEWL. They fixed the CEL lol. Then I got to thinking, maybe they just deleted the code like the performance shop did. So I gave them a call when I got home......NOPE they reflashed the mother ****er.
OK, now ive had my car in for service twice and this is my performance grade on them so far. First visit, left the oil cap off and my car spewed oil all over the engine bay and about caught on fire. Second visit, they reflash my ECU when all I wanted was an oil change and to fix the tire.
Next time I go in there I guess im going to have to walk them through the entire service. Take the oil plug out and drain the oil. put plug back in, take oil cap off, put in 9 qts of mobil 1 0 40w synthetic, but cap back on lol.
Oh well, I guess Im not a prisoner of war getting torchered to death, so things could be worse
![Stick Out Tongue](https://mbworld.org/forums/images/smilies/tongue.gif)
Oh ya, and Jerry is out of town till July 11th so I have to wait tell then to get my ECU tuned again, UGG.
#5
Super Member
Thread Starter
Park Place in Fort Worth
Yes, I did feel a difference. I usually get on the throttle pretty good going down a side road out of the dealership and the tires didnt break loose as easily as they would have before.
Yes, I did feel a difference. I usually get on the throttle pretty good going down a side road out of the dealership and the tires didnt break loose as easily as they would have before.
#6
MBWorld Fanatic!
Join Date: Aug 2005
Location: North Jersey
Posts: 2,207
Likes: 0
Received 2 Likes
on
2 Posts
2012 CTS-V
What did the service paperwork say?
They have to indicate all work performed on the service document.
If the CEL is on, they read the code, check it and clear it. Usually,
an ECU re-flash is not needed but anything is possible.
They have to indicate all work performed on the service document.
If the CEL is on, they read the code, check it and clear it. Usually,
an ECU re-flash is not needed but anything is possible.
#7
MBWorld Fanatic!
Hello my fellow C63ers.
I took my car into the dealership to get a tire fixed that had a nail in it and also decided to get my oil changed. My service adviser new that I had a tune on my car and I explained to him why the CEL was on. Well I picked up the car and noticed that the CEL was off. At first I was, KEWL. They fixed the CEL lol. Then I got to thinking, maybe they just deleted the code like the performance shop did. So I gave them a call when I got home......NOPE they reflashed the mother ****er.
OK, now ive had my car in for service twice and this is my performance grade on them so far. First visit, left the oil cap off and my car spewed oil all over the engine bay and about caught on fire. Second visit, they reflash my ECU when all I wanted was an oil change and to fix the tire.
Next time I go in there I guess im going to have to walk them through the entire service. Take the oil plug out and drain the oil. put plug back in, take oil cap off, put in 9 qts of mobil 1 0 40w synthetic, but cap back on lol.
Oh well, I guess Im not a prisoner of war getting torchered to death, so things could be worse![Stick Out Tongue](https://mbworld.org/forums/images/smilies/tongue.gif)
Oh ya, and Jerry is out of town till July 11th so I have to wait tell then to get my ECU tuned again, UGG.
I took my car into the dealership to get a tire fixed that had a nail in it and also decided to get my oil changed. My service adviser new that I had a tune on my car and I explained to him why the CEL was on. Well I picked up the car and noticed that the CEL was off. At first I was, KEWL. They fixed the CEL lol. Then I got to thinking, maybe they just deleted the code like the performance shop did. So I gave them a call when I got home......NOPE they reflashed the mother ****er.
OK, now ive had my car in for service twice and this is my performance grade on them so far. First visit, left the oil cap off and my car spewed oil all over the engine bay and about caught on fire. Second visit, they reflash my ECU when all I wanted was an oil change and to fix the tire.
Next time I go in there I guess im going to have to walk them through the entire service. Take the oil plug out and drain the oil. put plug back in, take oil cap off, put in 9 qts of mobil 1 0 40w synthetic, but cap back on lol.
Oh well, I guess Im not a prisoner of war getting torchered to death, so things could be worse
![Stick Out Tongue](https://mbworld.org/forums/images/smilies/tongue.gif)
Oh ya, and Jerry is out of town till July 11th so I have to wait tell then to get my ECU tuned again, UGG.
These guys have protocols and flow charts they follow that have specific instructions at every step. Don't expect them to ignore a cel just because you told them to. I don't think you should ignore it either btw.
I sure am not defending the dealer, just common sense stuff I guess.
Trending Topics
#8
MBWorld Fanatic!
Join Date: Oct 2008
Location: Central Florida
Posts: 1,521
Likes: 0
Received 3 Likes
on
3 Posts
2013 Chevy 427 Torch Red
Buy a $100 code reader and then you can read and clear the cel before you go to dealer. I can't imagine not owning one if you are going to have tuned files on your car.
#9
Super Member
Thread Starter
#10
Super Member
Thread Starter
Best advice my SA gave: if you get a cel, have your ECU turned back to stock before going to the dealer.
These guys have protocols and flow charts they follow that have specific instructions at every step. Don't expect them to ignore a cel just because you told them to. I don't think you should ignore it either btw.
I sure am not defending the dealer, just common sense stuff I guess.
These guys have protocols and flow charts they follow that have specific instructions at every step. Don't expect them to ignore a cel just because you told them to. I don't think you should ignore it either btw.
I sure am not defending the dealer, just common sense stuff I guess.
and yes, i do expect them to ignore a cel because i told them too. and they will be doing that from now on.
#11
MBWorld Fanatic!
well, ive addressed the cel on several occasions and there is nothing i can do about it at the moment. there is nothing wrong with the car, its just a sensitivity issue with the 02 censor P0140.
and yes, i do expect them to ignore a cel because i told them too. and they will be doing that from now on.
and yes, i do expect them to ignore a cel because i told them too. and they will be doing that from now on.
#12
Super Member
Thread Starter
as hhughes1 stated "Buy a $100 code reader and then you can read and clear the cel before you go to dealer." This is what I may have to start doing.
#13
MBWorld Fanatic!
when u called them did they say they reflashed it to OE
when i was emailing back and forth to EC, clint told me that dealers will not know if there is a flash and wont mess with it....
when i was emailing back and forth to EC, clint told me that dealers will not know if there is a flash and wont mess with it....
#14
Senior Member
Time to find a good independent shop with a SDS Diagnostic computer. Ask for recommendations at car shows, the car wash, any where you can find another Mercedes owner. You will typically get more for your money and personal attention at an indy. He wants your return business. The kid changing your oil at the dealer is too busy texting his buddies and girl friend to remember to put your oil filler cap back on
![Nonono](https://mbworld.org/forums/images/smilies/nonono2.gif)
![Nonono](https://mbworld.org/forums/images/smilies/nonono2.gif)
#15
Super Member
Thread Starter
What happened to the 5w40 oil called for by Mercedes?
Time to find a good independent shop with a SDS Diagnostic computer. Ask for recommendations at car shows, the car wash, any where you can find another Mercedes owner. You will typically get more for your money and personal attention at an indy. He wants your return business. The kid changing your oil at the dealer is too busy texting his buddies and girl friend to remember to put your oil filler cap back on![Nonono](https://mbworld.org/forums/images/smilies/nonono2.gif)
And couldn't care less if you darken their door again.
Time to find a good independent shop with a SDS Diagnostic computer. Ask for recommendations at car shows, the car wash, any where you can find another Mercedes owner. You will typically get more for your money and personal attention at an indy. He wants your return business. The kid changing your oil at the dealer is too busy texting his buddies and girl friend to remember to put your oil filler cap back on
![Nonono](https://mbworld.org/forums/images/smilies/nonono2.gif)
![Nonono](https://mbworld.org/forums/images/smilies/nonono2.gif)