That's what I was angling for, but the dealer claims that these sensors aren't covered under warranty. I find that hard to believe, but I haven't double checked that claim. Incidentally, my other car is '07 Acura MDX and the TPMS system on that has been working very well. A while back, I had an incident where TPMS would report low pressure on one of my tires every few days. Initially I thought that the system was malfunctioning, but after a couple of incidents of filling up ...
Quoted from tusabes' post
"actually, if you complained of the problem DURING the warranty period and they were unable to fix it, they are still obligated to fix it out of warranty. You may need to go up the chain of command to get this done. TPMS sensors are a nightmare on every car brand, ive seen so many that dont work right..."
Thanks for the welcome and pointers to the TPMS information. I'll check that out and look into option of buying these sensors from the Tire Rack. Will update the forum on how I make out.
Quoted from Skylaw's post
"Welcome to the forum! The W220 S-Class Owners Start Here sticky at the top of the forum has a number of posts related to the TPMS - from resets to replacements. By far, your best bet is to buy the proper replacement set from The Tire Rack. The sticky will give you the information. Because I canot edit within the document because of the limited time MBWorld allows for edits, you might find the document at to be a little easier to find things."
The TPMS system on my (actually, my wife's) 2004 S430 hasn't worked right from early on. The tire pressure warning light comes up frequently and stays on until the "R" reset button is clicked. My wife has been to the dealer several times with this issue and they haven't been able to do fix it. However, now that the car is no longer under warranty, the dealer has proposed a solution. They are recommending replacing all four tire sensors at $410 per wheel! They are claiming ...
2004 s430 tire pressure control chip
"My 2004 S430 is giving an error regarding tire pressure. The tire pressue monitor on all four tires are working correctly and the tires are fine, its just the main control chip that is bad. The car is no longer under warranty and the dealer is saying the control chip is bad and says its $700 plus labor to fix it. Has anyone replaced replaced this chip themselves outside of the dealer? Thnx, Vanessa"