1.8 kompressor engine noise?
09-22-2002, 02:06 PM
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1.8 kompressor engine noise?
My 03 (1.8 kompressor) coupe has done just over a 1,000 miles. But I have two concerns on engine noise.
1. Tickover could be smoother, there seesm to be a soft tapping. is this the 16v engine? (i previously had a 20v audi)
2. When accelerating (gently) there is a high pitched whirring. I assume this is the supercharger. but it does seem quite noisy and almost as if the car is revving high before the auto transmission decides to go up a gear.
Am I paranoid? is this normal. Have I done too few miles before it should settle down. Anyone with experience of this new engine, had similar concerns?
1. Tickover could be smoother, there seesm to be a soft tapping. is this the 16v engine? (i previously had a 20v audi)
2. When accelerating (gently) there is a high pitched whirring. I assume this is the supercharger. but it does seem quite noisy and almost as if the car is revving high before the auto transmission decides to go up a gear.
Am I paranoid? is this normal. Have I done too few miles before it should settle down. Anyone with experience of this new engine, had similar concerns?
09-22-2002, 02:14 PM
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2005 smart cabrio; 2008 Mercedes-Benz B 200
tickover noise
I'm not sure about the ticking noise at idle (tickover - I love that word) - could be any number of things from fuel injector solenoids (which I don't think you'd hear from inside the car) to valve clearances to various less pleasant things. Go to your M-B dealer and ask them about it - at least that will document your concern, should it later develop into a real problem.
The whirring sound is indeed the supercharger spooling up. Get used to this noise when you're on the throttle hard, as they all do it. When you know what's causing the noise, it becomes enjoyable, perhaps like the sound of a Honda VTEC engine hitting 5500 rpm...
I just thought of one other thing - perhaps this noise could be the "purge valve" that was replaced on many W203 cars, especially from the first year's production.
The whirring sound is indeed the supercharger spooling up. Get used to this noise when you're on the throttle hard, as they all do it. When you know what's causing the noise, it becomes enjoyable, perhaps like the sound of a Honda VTEC engine hitting 5500 rpm...
I just thought of one other thing - perhaps this noise could be the "purge valve" that was replaced on many W203 cars, especially from the first year's production.
Last edited by Mike T.; 09-22-2002 at 02:45 PM.
09-22-2002, 02:24 PM
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2002 C230 Coupe Black/Charcoal C5 C7 Auto
Re: 1.8 kompressor engine noise?
Originally posted by latent
My 03 (1.8 kompressor) coupe has done just over a 1,000 miles. But I have two concerns on engine noise.
1. Tickover could be smoother, there seesm to be a soft tapping. is this the 16v engine? (i previously had a 20v audi)
2. When accelerating (gently) there is a high pitched whirring. I assume this is the supercharger. but it does seem quite noisy and almost as if the car is revving high before the auto transmission decides to go up a gear.
Am I paranoid? is this normal. Have I done too few miles before it should settle down. Anyone with experience of this new engine, had similar concerns?
My 03 (1.8 kompressor) coupe has done just over a 1,000 miles. But I have two concerns on engine noise.
1. Tickover could be smoother, there seesm to be a soft tapping. is this the 16v engine? (i previously had a 20v audi)
2. When accelerating (gently) there is a high pitched whirring. I assume this is the supercharger. but it does seem quite noisy and almost as if the car is revving high before the auto transmission decides to go up a gear.
Am I paranoid? is this normal. Have I done too few miles before it should settle down. Anyone with experience of this new engine, had similar concerns?
