How do I know whether to purchase complete MAF or just replace MAF insert? po100 code alert Thanks, MBD

You just have to look deep inside your soul and decide whether you're capable of replacing the insert, assuming there is an insert available for a 99 S500, there may not be.

It is not if I can replace the insert. The question is does replacing the insert correct the problem or do you need to replace the whole unit? It is a matter of cost and I do not want to do it twice. Thanks MBD

Replacing the insert is sufficient except that I don't think 99 S500 has a replaceable insert. Where are you finding this part?

German Star parts has one part # 1120940048X.I spoke with RON there he says this part will work?

S500 1999 216K-- I have read several post but need an clarification. If the only code you get is po 100 does this indicate you need to replace the MAF insert? Thanks for replies, MBD

If he says so - that's not what their website says - http://germanstar.net/MAF.htm

99% OF the time that does mean the MAF is at fault.

BTW...no such thing as a MAF insert for a MB from MB or Bosch.

Those inserts are from either China OR taken from a VW MAF, never use that on a MB!!

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

Thanx DOC I will heed your advice. MBD

Hello to all;

Question could the MAF Sensor cause my 99S500 to tick,, or is that a bigger problem,,,
im getting the p0100 code, but was wondering if its the vavles..

also Ebay has a MAF sensor for bout a 100 bucks, u think thats the right way to go..

I got my MAF here, its aftermarket, but it works perfect on my C320 4Matic 2004