Changing out the tensioner pulley would not be a bad idea, especially while you’re in there changing out the belt. However, it’s not mandatory. Any of the pulleys up front are good until they aren’t, but you can check it to see how it is fairing.
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When should a serpentine belt be changed on a BMW?
How often does a serpentine belt need to be replaced? Serpentine belts are built to last—much longer than before because of advancements in rubber technology. Under ideal conditions, a belt should stick with you for an average of 60,000 to 100,000 miles. Pretty impressive.
How much does it cost to replace a serpentine belt on a BMW?
Typically, a serpentine belt replacement may cost around $100-$195. This includes both labor charges ($75-$120) and spare parts ($25-$75).
How long do BMW serpentine belts last?
How Long Do Serpentine Belts Last? Most modern serpentine belts are able to last anywhere between 50,000 and 100,000 miles, which is a fairly big window of time.
How much does it cost to get a serpentine belt changed on a 2007 BMW 530i?
The average cost for a BMW 530i serpentine belt replacement is between $167 and $215. Labor costs are estimated between $127 and $161 while parts are priced between $40 and $55.
How do I know if my serpentine belt is worn out?
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.
Do I need to 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.
Can I replace 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.
What happens if my serpentine belt breaks while driving?
The Alternator Stops Powering Electrics If the serpentine belt breaks, the alternator stops generating electrical power. If that happens, your headlights will dim, the radio won’t work, and the battery will die. The battery warning light will also turn on because your battery isn’t being charged.
How long does it take to replace 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 a serpentine belt last 150000 miles?
An older-style belt, made from Neoprene, usually lasts around 50,000 miles. Thus, a car with this type of belt might last you for four to five years. However, a newer belt made from ethylene propylene diene monomer, or EPDM, may last for 100,000 miles to 150,000 miles.
Can serpentine belt last 200000 miles?
Being made of durable rubber, a serpentine belt can last anywhere from around 50,000-100,000 miles.
What problems can a worn serpentine belt cause?
- Squealing noise from the front of the vehicle. If you notice a squealing noise coming from the front of your vehicle, it could be from the serpentine belt.
- Power steering and AC not working.
- Engine overheating.
- Cracks and wear on the belt.
What year BMW 5 Series is the most reliable?
Best BMW Series 5 Year Our pick for the “best” is BMW’s Series 5 sixth generation, which were available 2010 to 2016. The sixth generation offered two models – 528i and 535i. Both provide an overall great value for the money and a great pick if you’re in the market for a pre-owned Bimmer.
When Should BMW timing chain be replaced?
BMW use timing chains in almost every model of engine that they produce. It is recommended to replace your timing chain before failure as repair prices can become very high from internal engine damage if left. The average life of these timing chains is 90,000 miles or 9 years.
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 does a worn serpentine belt sound like?
It can squeak, squeal, chirp and clunk, imitating a bad engine-driven accessory or engine bearing. These noises can fool even the most experienced mechanic and lead to an expensive misdiagnosis. Squeals and chirps are definitely the two most common serpentine belt noises and usually result from different problems.
Does serpentine belt affect gas mileage?
Yes it does. The A/C compressor adds additional load to the engine since it is connected by the serpentine belt. The additional load means the engine has to work harder to maintain the same speed. Harder work means more fuel consumed.
Is a drive belt the same as a serpentine belt?
A serpentine belt (or drive belt) is a single, continuous belt used to drive multiple peripheral devices in an automotive engine, such as an alternator, power steering pump, water pump, air conditioning compressor, air pump, etc.
How do I know if my tensioner pulley needs to be replaced?
Appearance: Cycle the tensioner (mounted on the engine) through the entire range of motion (from stop to stop) by applying torque to the arm with a wrench. The tensioner arm should move smoothly and freely. Solution: If you notice a binding, sticking or grinding tensioner arm, the tensioner should be replaced.
How long does it take to replace a serpentine belt and tensioner?
It can take anything from 15 minutes to an hour (two at the most) to repair or replace a bad serpentine belt with a new belt.
What causes serpentine belt squeal?
Top Three Reasons for the Squeal Low belt tension either caused by low installation tension, a stretched belt, extreme belt wear, tension spring degradation or a belt that’s too long. High accessory/idler pulley drag from seized bearings or accessory failure/lock-up.
What tools do you need to put on a serpentine belt?
- ratchet and socket set.
- torque wrench.
- new replacement belt.
- new tensioner.
- new pulley.
- wrench set.
- jack and axle stands or ramps.
What are the 3 belts in a car?
- Timing Belts. A timing belt, is a notched rubber belt that opens and closes the engine valves in proper timing with the pistons.
- Serpentine Belts. Your car’s serpentine belt is a long continuous belt that drives all your engine components.
- V-Belts.
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.