BMW X5 mechanical update Need new air intake boot

Yesterday my X5 stalled and when I went to restart, sounded like I had a volcano under the hood of my car. Called my mechanic this morning and he was available to see the car. He received a code 268 and that the number 1 cylinder was acting up. He replaced the spark plugs and wiring last week, so he kept looking for other issues. Apparently he found a crack in the air intake boot and thinks this may be causing the issue. $185 including labor. My mechanic said the age of the vehicle (2001) and mileage (97000) could cause the crack in the rubber boot. I was a bit skeptical, but will have to take his word on this one. This could be my cheapest trip to the mechanic to date. I will be sure to give it a serious road test the next few days.