SLK 230 warning lights help

[mcmcfly]

I have an 01 slk 230 w/48k. About a week ago my ESP/BAS light came on, along with the ABS light. Cruise is disabled and car has gone into limp mode.
After reading several posts on here, I replaced the brake light switch, performed stop to stop on steering wheel, had batery and alternator checked, both ok. Problem still exists. Now today the SRS light has come on. Does anyone know what may cause this meltdown?

 

[television]

I have an 01 slk 230 w/48k. About a week ago my ESP/BAS light came on, along with the ABS light. Cruise is disabled and car has gone into limp mode.
After reading several posts on here, I replaced the brake light switch, performed stop to stop on steering wheel, had batery and alternator checked, both ok. Problem still exists. Now today the SRS light has come on. Does anyone know what may cause this meltdown?

You have lost a speed signal from one of the front wheels, I would think

 

[mcmcfly]

Thank you for your reply. You wouldnt happen to know where I could find that sensor and what it looks like, would ya?

 

[television]

These could be checked

http://www.detali.ru/cat/oem_mb2.as...622716.630&CT=F&cat=66E&SID=54&SGR=695&SGN=18