I have a strange whining noise coming from what sounds like the rear of my car when driving.?
It is regularlry serviced. Over the last 2 months I have started hearing a strange humming/whining noise when driving. It seems to be at its worse at around 70 mph. It also seems to be very apparent when slowing down to a stop. I know it is not the bearings as I had these replaced and did not make the remotest impact on the noise.
Any idea what it can be?
Answers:
I believe the C200 has rear wheel drive. If this is the case, it will have what is called a differential gearbox or "diff"
The diff has a number of gears in it, that when under normal normal driving conditions, the teeth of these gears press together quite hard. However, when slowing down, that pressure on the teeth reduces, allowing something called "backlash" to come into play. This backlash can produce a whining noise.
If the diff is failing, be prepared for a large bill.
wheel bearings
get some1 to drive slowly and walk along side of it and see if anything is rubbing
bad whining noise from what seems to be the rear of the car. I suggest you remove the mother in law from the back seat.
rear axle problem or bearings get it sorted or you will break down and cost you a lot more
Could be the differential gear thats worn, they make a whine when they start to go.
It's the bearings I'm afraid, get them checked out. They may not have been replaced, merely tightened up - something I've experienced myself. Go to a different mechanic.
sounds like rear u -joint or transmission. have both checked.
Have the rearend checked out, however if this is a front wheel drive car then it has to be the bearings. Take it to another mechanic, because it has to be something with the wheels. Maybe it's the brake pads or discs.
The mother in law
sounds like brake pads rubbing,may be retaining springs not put back in,have pads looked at,at place you had last service done
It might be 2 things check your U Joints if it is a rear drive car and also if it is a rear drive car check the rearend pinion gears they might be getting worn that would cause a whinning noise. It could also mean if you have a driveshaft it could be out of balance with something as simple as weight gone off the driveshaft
Try letting your wife out of the boot!
Try checking your tires. If your tires are unevenly worn or simply unbalanced, it can result in a 'groaning' or 'humming' or 'whining' sound. Most tire shops will evaluate this situation free of charge. Resolution, however, costs extra. Good luck!
wheal bearings mate does it hum like hummmmhummmhummmhmmuhmhmumhmum. or something like that?
you forgot to take the wife out of the boot after a shopping trip
could be a couple things, if it is rear wheel drive, could be diff bearings, or if you have recently put tyres on the back and there cheapos could be a bit of road noise.
DO NOT keep driving the vehicle as it sounds like your rear end is failing! There are bearings in there that have become defective
and if you continue to drive it your repair bill will become astronomical because you will be replacing housing and all! Right now it might be just bearings and races, ring and pinion which will only be a fraction of a new rear end!
Did you run someone over but they are still alive, screaming for help? Or maybe its something mechanical
i suggest you let the missus out of the boot! lol!!
Could be a hub bearing, a driveshaft, if it is a RWD vehicle then check the gear oil level in the differential, The trans is a possibilty. Just run it down to a local garage. Should take too long to pinpoint the problem.
good luck..
Whole lot of things this could be. Rear axle final drive, drive-shafts and yes the bearings - sound like whoever did these for you didn't know how to diagnose the whine. Bearings will whine constantly, the final drive and shafts will only whine when under pressure from the engine either during acceleration or engine braking. To test drive the car at about 50 mph - stab the throttle - but not enough to activate the kick-down, if the noise gets worse it is very likely to be the drive axle. Next at about 60 mph knock the car into neutral and use the brakes only to slow down - if the noise appears now it's the drive-shafts. It's all about applying pressure to the components that are likely to be making the noise.
probably the missus mate moaning you are too close, you are going too fast, mind that cyclist, etc.
sorry about that, have you had the gear box oil checked?
there could be an air leak in the intake area of the engine bay, but i would check the gear box oil first.
good luck
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