1998-04 Mercedes Benz E320 Harmonic Balancer.2005 Mercedes Benz E320 Harmonic Balancer Gas Engine.2006 Mercedes Benz CLS500 Harmonic Balancer.2003-06 Mercedes Benz CLK500 Harmonic Balancer.1999-03 Mercedes Benz CLK430 Harmonic Balancer.1998-05 Mercedes Benz CLK320 Harmonic Balancer.2000-06 Mercedes Benz CL500 Harmonic Balancer.1998-00 Mercedes Benz C43 AMG Harmonic Balancer.2001-05 Mercedes Benz C320 Harmonic Balancer. 1998-00 Mercedes Benz C280 Harmonic Balancer.2001-05 Mercedes Benz C240 Harmonic Balancer.Lowest Price: Mercedes-Benz Harmonic Balancer (eBay link).You can use the OEM balancer or install a new aftermarket harmonic balancer for under $100.Ĭlick the link below to see the lowest prices on Mercedes-Benz harmonic balancer. You have a couple of options for replacing the harmonic balancer. Best price on Mercedes-Benz harmonic balancer You will spend around $50 for the harmonic balancer tool and around $100 for the crank pulley. If you change the harmonic balancer yourself, it will typically cost you around $150. How much does it cost to change the harmonic balancer on a Mercedes-Benz?Īn auto repair shop or a Mercedes dealership will charge between $350-$700 to replace the harmonic balancer pulley. Torque: 147 ft-lb or 200 Nm, then an extra 1/4 turn.This central bolt secures the vibration damper to the engine crankshaft. The last step is to reinstall the serpentine belt. Next, loosen the bolt with a breaker bar and a cheater pipe/extension. You will need to hold the crank pulley using the harmonic balancer tool. Now it is time to install the new harmonic balancer. Step 5: Install the new harmonic balancer You will apply over 200 Nm of force to the bolt, which requires considerable energy. Add a cheater pipe to your breaker bar if you can’t get it loose. You will need to use a breaker bar such as Neiko 00206A 1/2 Inch Drive Premium Breaker Bar, 24″ Length | Cr-V Steel to get this bolt loose. Next, use a 27 mm socket on the bolt to loosen it up. You will use the harmonic balancer tool to keep the crankshaft from turning. You will need to use Mercedes harmonic balancer tool to hold the crankshaft pulley in place as you loosen up the 27 mm bolt. You must place a socket on the belt tensioner and pull it until you can slide the belt out. Here is a video on how to replace the viscous fan. To remove the fan, you will need Mercedes-Benz viscous fan tool. It must also be removed if you have a pre-2000 Mercedes-Benz equipped with a viscous fan. Before you pull the radiator fan upwards, unplug the electrical connector. There are clips on the side of the fan that you need to press and pull out the fan. This is required as there isn’t enough room for you to hold the harmonic balancer in place and, at the same time, use a socket to remove the bolt. On most Mercedes-Benz models, you must remove the radiator fan and shroud. Next, lift and secure the hood in the upright position. Go to the front of the car and pull on the hood handle. Pull the hood release on the lower left corner of the dashboard. It can be removed with the engine in place. The good news is that you don’t need to drop the subframe or remove the engine to replace the harmonic balancer. Price Disclaimer Instructions on how to replace harmonic balancer The good news is that the engine doesn’t need to be removed, and a DIYer can replace it.īecause the crankshaft pulley drives the serpentine belt and all the accessories, including the water pump, alternator, power steering, and a/c compressor, if it fails, you won’t be able to drive your vehicle. It also helps to absorb some of the engine vibrations by using rubber elements between the crank pulley outer ring and the center of the pulley.ĭue to heat, the age of the vehicle, and normal wear, the rubber fails, causing excessive crank pulley vibrations and even catastrophic failure in some cases. Its main purpose is to spin the serpentine belt. Both are metal and are joined by a rubber damper. The outer ring drives the serpentine belt and the center of the crank pulley. The harmonic balancer has two metal components. It is connected directly to the crankshaft. This is a common problem on Mercedes-Benz models ending with 240, 320, 430, and 500.Ī harmonic balancer (a vibration damper or crank pulley) is the main pulley that drives the accessory belts on a Mercedes-Benz engine. These two engines are installed on many Mercedes-Benz models manufactured between 19, including E-Class, C-Class, S-Class, and ML-Class. This is a common problem with Mercedes-Benz equipped with the M112 and M112 engines. This tutorial covers common harmonic balancer/crankshaft pulley problems and instructions on replacing them.
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