Why does my Mercedes Benz GL450 make a hissing sound?

Why does my Mercedes Benz GL450 make a hissing sound?

We were stopped at a red stoplight, out of nowhere there was a loud explosion, shook the whole car and sank, the feeling like we were in a sink hole or like a tire blew but the tire was fine. A loyd hissing sound ensued.

Are there any problems with the Mercedes Benz GL450?

Other Common Suspension related problems of Mercedes Benz GL450 Problem Category Number of Problems Suspension problems 41 Front Suspension problems 5 Suspension Noise problems 4 Rear Suspension Springs problems 4

Why does my car make noise when I go over 20 mph?

If you hear the noise above 20 mph it’s most likely a wheel bearing noise but it’s not a bad idea to check the tire tread to be sure the tires are not chopped or worn uneven. If you what to leave me more details about the noise I may have a more definitive answer to what may be the problem.

Is it normal to make noise when accelerating?

There are noises that are normal on acceleration. The best way to know if the noise is normal is simply if you have heard the noise before. You have probably driven, or at least ridden in cars for years.

If you hear the noise above 20 mph it’s most likely a wheel bearing noise but it’s not a bad idea to check the tire tread to be sure the tires are not chopped or worn uneven. If you what to leave me more details about the noise I may have a more definitive answer to what may be the problem.

There are noises that are normal on acceleration. The best way to know if the noise is normal is simply if you have heard the noise before. You have probably driven, or at least ridden in cars for years.

Why is my car humming at 55 mph?

If the noise is proportional to road speed (increases with road speed), or gets louder when you are on a freeway on/off-ramp, it’s likely a wheel bearing. The outside wheel in a turn has a higher load.

What causes a howling noise in the rear of a car?

Cause:Worn rear pinion bearing or worn gear set Noise:Howl without whir or rumble while accelerating at any speed (gears previously quiet) Cause:Worn gear set due to lack of lubrication or overloading Noise:Howling while accelerating over a small speed range (gears previously quiet) Cause:Worn gear set due to lack of lubrication or overloading