Anyone have a clue?
First time I painted my intake box and reinstalled got a cel brought it int rusnak they fixed it and threatened to charge me next time.

A few days ago I went back and repainted the intake box. Cel pops up again

Any clue what I did wrong?

 

did you disconnect the battery?

 

... stop painting the intake box?

 

Exactly...

If you already knew the first time what caused the problem, why would you do it again?

 

Becasue I have a gut feeling that it would do no harm to the car. Why would I do it again? change the paint scheme. Thanks again you two for your useless comments. Much appreciated

 

if you could get them to read out the code for you, you'd have a better idea of the fault.
A simple CAN ODBII reader would suffice.. and if its not a major issue, it can even be reset by the reader..

 

if they read out the code, where do i match the code to the problem? I never had to do this before so I dont know sorry

 

http://equus.com/
A good website to start out. Just enter the code and the manufacturer.
Hope that helps.

 

future reference, when working on a part of your car that has sensors, (which im pretty sure the intake box does) disconnect the battery. Not saying this is what caused it, but It good to cover all bases.

 

hmm ijust disconected the battery error still shows :/ thanks for the tip!

 

did you have the ignition on at all when doing it? Removing the cover will throw a cell if your listening to music and doing stuff there, I was cleaning my tb with the radio on and when i moved the tb it pissed off the car and threw a cell, which I of course cleared.

Did you cover up where the intake goes into the tb? you may have gotten paint which would have stuck or, the car could have inhaled paint fumes or heavy dust?

Discount can read that cel. Usually a google search can tell you the reason by the code.

 

maybe the seal isnt that good on the box. reinstall again.....

 

not the seal on the box i have re installed. As for fumes no I did have the radio on, so Im going to ask them today thanks guys

 

went to the dealership to talk to a tech, he said most likely it wasnt due to removing the intake box, but more so my hids. He said mercedes really hate them, and hes seen many catch on fire recently .... not much help and said that they would charge 150$ to find out the problem due to the fact that it was modified

 

i call bs on tech. giving bs excuse. hid you should always remove them before going into for warranty. dont know why u would put some race inspired cosmetic enhancements on ur car anyways....

 

+1...you should make sure it's seated correctly...especially in the aft.

 

It is I took it in to dealership they said it was seal perfectly. and a common problem is the seal lip being folded in. But this wasnt the case.

Does anyone know what I do after I use a ob2 scanner to find the code. If its nothing major how would i reset the engine light. Is it already a option for the scanner tool to reset the cel?

 

I've heard that the euro-obdII can reset the cel....but, in my limited experience with those lights, they extinguish themselves.

What codes do you have?

 

looking for a ob2 sensor I can use. I dont want to buy one.

 

Many independents will check codes for free. Autozone uses one for domestics....don't bother.

 

yeaa disconnecting the batter now wont get read of the CEL lol. I would go to a autozone or something like that and tell them to run the scanner and clear it.

 

Maybe you're gut feeling is wrong

I would agree that it sounds ridiculous that paint could have caused your issue but let's look at facts here vs gut feelings...

Fact - Painted air box once = check engine light. Fact - Painted air box twice = check engine light...

Got vehicle fixed the first time = free. Got a gut feeling = check engine light, again.

At this point, is a painted air box really worth the check engine light? I'm not saying it's the painting of the air box actually causing your issue, but maybe it's you? Maybe you're doing something wrong that we can't help you with because you think you're doing it right, so you feel no need to mention it.

I'm not trying to be an *** but it seems there is an easy and FREE solution to your problem but you don't want to go that route...

Did Rusnak mention to you what they had to fix the first time? Start there

 

or... buy your own scanner.. it's pretty cheap and a good investment, since we'd love to tinker with our cars.

It even read out A/f ratios and such real time..

 

first time was seal problem, Second time actually had nothing to do with the airbox. Turns out it was just some random code. I erased the code with my friends scanner went for a long drive nothing popped up.

 

Glad to hear it was unrelated. The two 'useless comments' were probably the best guesses in the entire thread though. Many contaminants can cause damage to the surface of the mass air flow sensor. It is conceivable that off-gassing from the paint could "**** off" the sensor. Please excuse my highly technical explanation. Some of the mods that you guys do leave me scratching my head, but then again I guess painting the engine cover can be a fun little customization if you enjoy it.

What was this code for? Good to find out incase it triggers again.