Code 4 on DM

		PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help
Code 4 on DM

01-06-2008, 09:42 AM

JimF

'94 S500: only 793 sold!

Join Date: Mar 2001

Location: San Diego, CA

Posts: 1,933

Here's the DTCs:

4 - Air injection system faulty hot film mass air flow sensor with hot wire

EA w/ ASR
11 - Closed throttle recognition signal to engine control module (HFM-SFI or Left LH-SFI)

Check out MENU#4a and use some MAF cleaner; works nicely on 'hot-wire' MAFs as it worked great on mine!
Also a cracked vacuum line will give #4 code.

__________________
Regards . . . . JimF
-------------------
'94 S500 Cpe

Visit my Mercedes Web Page

Last edited by JimF; 01-06-2008 at 12:34 PM.

Bookmarks

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is On Trackbacks are On Pingbacks are On Refbacks are On Forum Rules

All times are GMT -4. The time now is 07:05 AM.