Lindsay D
New Member
Hi Guys
Please can anyone help a newby with a very frustrating problem. I have a 1999 w202 C280 and have replaced the MAF and Lambda sensors. My problem is that on cold start the engine fires up every time, no prob. When the engine is hot and been standing for a while it battles to start. It does 2 things. It will start then immediately stall. When this happens I rev the engine to 2000 rpm for a while and it will then idle ok. Or, the starter turns the engine over for a second then stops (not sufficient to start the engine). The starter will sometimes turn the engine over normally and it will start. Both of these usually happen at the same time.
The service centre tried a few MAFs and with a couple the engine wouldn't even run. During all of this the only fault on the diagnostic console was 'voltage less than 9v' when the starter only turns the engine for a second! I have had the battery checked out and all ok.
I am convinced that the starter motor problem is related in some way to the MAF or a temperature sensor as the engine could be starting too lean and thus stalling????
This is driving me nuts. Can anybody please throw me some pearls of wisdom here!!!
Please can anyone help a newby with a very frustrating problem. I have a 1999 w202 C280 and have replaced the MAF and Lambda sensors. My problem is that on cold start the engine fires up every time, no prob. When the engine is hot and been standing for a while it battles to start. It does 2 things. It will start then immediately stall. When this happens I rev the engine to 2000 rpm for a while and it will then idle ok. Or, the starter turns the engine over for a second then stops (not sufficient to start the engine). The starter will sometimes turn the engine over normally and it will start. Both of these usually happen at the same time.
The service centre tried a few MAFs and with a couple the engine wouldn't even run. During all of this the only fault on the diagnostic console was 'voltage less than 9v' when the starter only turns the engine for a second! I have had the battery checked out and all ok.
I am convinced that the starter motor problem is related in some way to the MAF or a temperature sensor as the engine could be starting too lean and thus stalling????
This is driving me nuts. Can anybody please throw me some pearls of wisdom here!!!
