How long can I drive with a bad serpentine belt?


Sharing is Caring


There are a couple of factors influencing the answer to this question, but on average, your car should be able to run between 20-90 minutes with a broken serpentine belt. The engine will overheat faster without a functioning cooling system on a hot day, so your driving window is less.

How long does it take to replace a serpentine belt on a BMW?

With the right tools in your hand, replacing the belt won’t take you any longer than 30-minutes.

How much does it cost to replace serpentine belt BMW?

Typically, a serpentine belt replacement may cost around $100-$195. This includes both labor charges ($75-$120) and spare parts ($25-$75).

How many belts does a BMW E90 have?

Figure 1 BMW E90 models utilize 1 multi-rib engine drive belt.

What does a BMW belt tensioner do?

The serpentine belt tensioner, or drive belt tensioner, provides tension to the drive belts to ensure the belts stay in contact with the crankshaft pulley and the pulley that belt is meant to drive.

Can I replace a serpentine belt myself?

Serpentine belt replacement is easy because today’s automatic drive belt tensioners eliminate the need to loosen bolts or pry components into position for retensioning. Just rotate the tensioner, remove the old belt and install a new one.

How do I know if my serpentine belt is bad?

A squealing or noisy belt is one of the most common symptoms of a slipping or worn serpentine belt. Squealing can be more pronounced when you’re climbing a hill and running your heater or air conditioning at the same time. Squealing can also occur after you drive over deep puddles or have an undercarriage car wash.

What happens if serpentine belt breaks while driving?

This can lead to a sudden lost of power assist for the steering system, leading to the steering wheel all-of-a-sudden becoming very hard to turn. A broken serpentine belt may stop the water pump from circulating coolant through the cooling system, causing the engine can overheat.

How long does it take to change serpentine belt?

It usually takes approximately thirty minutes for a mechanic to replace a serpentine belt. With the right tools and equipment, an auto mechanic can complete the process within thirty minutes to an hour.

Can you drive with broken serpentine belt?

Basically, you should be able to drive it to a safe space where it can be towed or repaired. If the belt is snapped and dangling in the engine compartment, remove it before moving the vehicle to prevent further damage.

Who makes belts for BMW?

The link you have shows belt is made by Continental. (under the Kit Content button!)

How do you remove a serpentine belt?

To replace a serpentine belt, start by locating the old belt at the front or side of your engine bay. Then, use a wrench to relieve the auto tensioner so you can pull the belt off of the pulley system. If your vehicle doesn’t have an auto tensioner, look for an alternator bracket and loosen the bolts in it instead.

How do I know if my tensioner pulley is bad?

YouTube video

What sound does a bad belt tensioner make?

A bad timing belt tensioner noise is a noticeable symptom that starts like a whining sound within the car’s engine. You would hear a knocking sound if the timing belt goes loose due to a bad tensioner since the connected parts would start hitting the belt cover.

What does a worn serpentine belt sound like?

Squeals and Chirps: The Most Common Serpentine Belt Noises. There are two types of noise that a serpentine belt typically makes. One is the chirp, the other is the squeal. They each are the result of different issues within the front end drive system.

Is a drive belt the same as a serpentine belt?

A serpentine belt is used for most makes and models because it’s known to last longer. And because it’s made of a more flexible material, you can remove it and have it replaced with a brand-new one. A drive belt is comprised of material that’s thicker and tougher than a serpentine belt.

Should I replace tensioner with serpentine belt?

Chances are, you’ll replace the serpentine belt at least once before you have to replace a tensioner. In most cases, you’ll replace the belt several times before the tensioner. But every time you replace the belt, you should check the tensioner. A bad tensioner could ruin a brand new belt.

Is timing belt the same as serpentine belt?

A timing belt has horizontal “teeth” that are made to fit both the crankshaft and camshaft. In contrast, a serpentine belt has multiple V-shaped grooves that appear vertically along the belt. Over time, these belts need to be replaced (roughly around the same time).

Does serpentine belt affect acceleration?

Can A Bad Serpentine Belt Cause Acceleration Problems? Yes, it could. Bad serpentine belts cause loss of power. Especially in situations where slippage occurs and the alternator supplies power to the ECM.

Can I drive a short distance without a serpentine belt?

Only for a very short amount of time. Without the belt, neither the alternator nor the water pump will be driven. That means that the car battery will run down and the engine will overheat. Once either of those things happen, you’ll have to stop driving and be stuck wherever you ended up.

What causes a serpentine belt to rip?

Serpentine belt problems usually result from one of three causes: a defective belt tensioner; misalignment of a pulley; or, defective bearings in the tensioner, idler, or one of accessories driven by the belt (including the water pump).

Does serpentine belt affect brakes?

The power steering and power brake pumps are driven by the serpentine belt in most vehicles. Those pumps make the pressure that assists your steering and braking. In many vehicles, the water pump is driven by the serpentine belt.

Does the serpentine belt affect the battery?

The serpentine belt does affect the battery. The belt keeps the alternator spinning, and those rotations in turn power your: Steering system. Electrical system. Air conditioning.

How much does a mechanic charge for a serpentine belt?

The cost of the serpentine belt itself could be around $50 and the cost of labor could be around $150. As a result, a serpentine belt cost for replacement could range from $70 to $200 depending on your exact model and where you get it replaced.

What happens if you don’t replace serpentine belt?

You’ll lose power steering, the A/C will quit, your battery will eventually die, and the engine might overheat. Plus, it could also damage the engine accessories it controls. This is why it is so important to get your serpentine belt replaced on a regular schedule.

Craving More Content?

  • What is the M Sport Package on 330i?

    Executive Package – Requires (ZMP) M Sport Package – Includes: Heated Steering Wheel; Comfort Access keyless entry; Lumbar support; Heated front seats; Ambient Lighting; Icon Adaptive…

  • What color is BMW blue?

    BMW Individual Macao Blue metallic is an M specific paint finish which has been a style-defining feature of M cars for over three decades. Debuting on…

  • What does BMW production number mean?

    A production # means you have an allocation and a build week confirmed with the BMW factory to order your car. You should be in 111…

Carolina's BMW