2008 Mercedes S550 4Matic Front Axle Repair in Beaverton, OR

Something is definitely wrong with my SS550 4Matic’s front axle… Can I drive it in to have you look at it?

You should not drive a vehicle with a front axle problem. It is very dangerous for you, your passengers, and other drivers. Your wheel could come off your vehicle. In fact, if you start hearing a grinding sound from your wheel bearing then you should immediately stop driving. You should have it towed to somewhere that can fix the problem.

I’m not totally sure that my front axle is the problem. What are signs that should tell me if it is the problem?

You will hear a grinding noise when you drive. You will also notice vibrations between your steering wheel and your brake pedal.

I’ve heard that CV axles need to be replaced more often than straight axles. Is that true?

Actually, there is some truth to that statement. Straight axles tend to be more stout than their CV counterparts. CV axles should be good through the mileages of 80,000 to 100,000 miles. Keep in mind, though that your driving style plays a massive part in determining how long your axles will last.

Wait, which axle type do I have then?

Straight axles are usually used when the rig is heavy duty and/or a commercial vehicle. CV axles are more commonly seen in vehicles that are passenger vehicles.

This is something that I can do, myself, right?

Unfortunately, we do not recommend attempting this on your own. Your vehicle has to be lifted which is usually impossible for most people and dangerous for some. You must also dismantle your suspension system, not to mention the amount of time this all takes. You would have to be extremely experienced and knowledgable in order to make this happen.

Ok, well, I still find this front axle stuff confusing. Could you tell me more about how this integrates into the overall makeup of the vehicle? How does it work, exactly?

If you have a vehicle that uses an independent suspension system then you are probably using CV axles. CV axles actually have heads that articulate at each end. Why? It allows the wheel to move freely from the differential. They also have something called a CV boot. The CV boot provides protection against dust and also helps keep the grease in the vehicle. If you are using straight axles then you are using axles that are made of a very strong metal. They need to be strong to withstand the power that needs to be transmitted from the engine to the wheels. It also has to handle the weight of the vehicle. A lot of force to transfer and to steady. The axles also have ends that contain gears. They call them splines. They work with the hub and bearing assembly and the differential. They also have a tube where the straight axles spin inside. It is called the axle housing. It has the following on the inside: left and right axles, wheel bearings, and the differential in the center. A thing to keep in mind is that the front axle is unlike the rear axle if it is straight. The front axle has to have a bend in order for the wheel to be able to turn. The joint is bent via a universal joint.

So, if I bring this thing in, then what are you going to be looking for, what is it that you will be looking for and how?

A tech or mechanic will try to see if the problem can be visually seen by looking at the vehicle. They may also test drive it. If, after looking at your vehicle, they see that your CV boots are torn, but the CV gears appear to be fine then they will consider changing your CV boot. If your problems seem to show that the front axle is faulty then they will inspect it and look for damage. The CV axles will be replaced. If you are dealing with a warped straight axle then it will be discovered via a straight edge or the wear patterns.

How do I contact you if I want you to look at my 2008 S550 4Matic and the axles?

You can contact us by visiting 10925 SW Beaverton Hillsdale Hwy, Beaverton, OR 97005. You can also call us during business hours at 503-641-4525.

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