Hi. Still got my 1990 240DL Wagon. My wife uses it for her job as an urban gardener. Perfect for that purpose and we'd like to hold on to it forever.

For the past year or so, it was having problems starting up after a rainfall. And it would stall out and some very inopportune times. Engine cold or hot: didn't matter. After one rainfall it didn't start up at all. This was eventually fixed by replacing something within the starter relay. Sorry, but I don't have the receipt for that one available and I don't remember the part. But we were very happy after that repair...

...for about a month.

Then it started to hesitate/hiccup at stop lights/signs. And then it started to stall out at the lights and signs.

Back to the garage. He ran a diagnostic on the computer and came up with a 1-2-1 code. "Check for Vacuum Leak. Check Mass Air Flow Sensor". He removed and replaced that unit but couldn't find the a replacement for the Intake Tube (which he repaired instead). Then he cleaned the Throttle Body.

I asked about the Intake Tube and he said it was air tight.

I picked the car up and didn't warm it up. Hesitating and stalling all the way home (10 city blocks). Next day I let it warm up 5 minutes before driving to work. No stalling but hesitating a lot. I played the accelerator pedal gently to keep it from stalling.

It's back in the shop, now. No word, as of yet.

Any advice/knowledge imparted would be greatly appreciated.