alpharabbit

My 507 should be arriving soon and I was considering getting the afe pro dry filters. I have heard that this can cause CEL with lean mixture codes. Has anyone run aftermarket dry filters with the 507 successfully?

johnnyblaze

It's usually the oiled filters that cause the CEL codes. I've never personally heard of the dry filters causing a CEL to come on, unless the air boxes were not properly seated. Personally, I have had my aFe pro dry S filters on for over 9k miles and haven't had a problem at all.

alpharabbit

thanks for the info, I was referring to this post: https://mbworld.org/forums/c63-amg-w...elete-cel.html

since it directly applies to a 507 with dry filters. There wasn't ever any further followup posts so perhaps it sorted itself out.

aussie e55

had afe dry filters on my last 2 amg cars no problems

dubzAMG

I have had mine for approx 5000 kms, no problems, just make sure air filters, and air box tops are seated properly.

im3cpo

I was the person who started the thread you quoted above. To summarize, I changed the air filters out for dry Weistec filters and removed the charcoal filters while I was at it. I did get a CEL, but driving around for a week or so did not clear it up. The car would buck and surge at around 1800 RPM or so and I had about 7 instances of the LEAN code in the computer.

I went to autozone, borrowed their scan tool, cleared the codes and put the charcoal filters back in while leaving the Wesitec filters in place. I have about 1,000 miles with this setup installed and everything is perfectly fine and no more CEL's.

My guess is the plastic braces behind the charcoal filters could be to blame for the CEL. Some mass air sensors appear to be sensitive to turbulence for one reason or another and I believe the added turbulence caused by these braces when the charcoal filters are removed is too much.

I have a VelosDesignWerks tune on the way (should be here tomorrow) and may give it another shot with the new tune on the car. Worst case is the need to erase the CEL codes and put the charcoal filters back in again. I just cant get past how insane it appears/feels to suffocate the engine with the charcoal filter in there.

Give it a shot and let me know what you experience....

mr747

No probs here with afe filters

alpharabbit

Awesome, thank you for the information everyone. I will try these when the car comes in, (hopefully very soon) and report back.