Glow Plug/Light Question '81 300D
Since it's the weekend, I thought I'd post this and see if anyone has ideas...this way I can be proactive with my mechanic once the week begins.
Here's the situation:
I noticed a few weeks ago the glow plug light lit up while I was driving. It lasted about 7-15 seconds. Then, one day last week, the car was very difficult to start and the light stayed on for about 15 seconds...normally it goes out after about 3-5 seconds. I turned the key several times to preheat and just kept on it until it finally started. This morning, the same thing happened. So, I preheated about 10 times until the engine turned over. Also, each time I preheated, the light remained on longer than normal. Does this sound like the glow plugs just needing to be replaced? Thanks in advance!