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On average, the cost for a Mercedes-Benz 420SEL Power Steering Pump Pulley Replacement is $458 with $287 for parts and $171 for labor. Prices may vary depending on your location.
| Car | Service | Estimate | Shop/Dealer Price |
|---|---|---|---|
| 1990 Mercedes-Benz 420SELV8-4.2L | Service typePower Steering Pump Pulley Replacement | Estimate$781.90 | Shop/Dealer Price$957.14 - $1411.96 |
| 1989 Mercedes-Benz 420SELV8-4.2L | Service typePower Steering Pump Pulley Replacement | Estimate$745.90 | Shop/Dealer Price$921.19 - $1376.05 |
| 1988 Mercedes-Benz 420SELV8-4.2L | Service typePower Steering Pump Pulley Replacement | Estimate$745.90 | Shop/Dealer Price$921.19 - $1376.04 |
| 1987 Mercedes-Benz 420SELV8-4.2L | Service typePower Steering Pump Pulley Replacement | Estimate$745.90 | Shop/Dealer Price$921.12 - $1375.92 |
| 1991 Mercedes-Benz 420SELV8-4.2L | Service typePower Steering Pump Pulley Replacement | Estimate$745.90 | Shop/Dealer Price$921.24 - $1376.13 |
| 1986 Mercedes-Benz 420SELV8-4.2L | Service typePower Steering Pump Pulley Replacement | Estimate$745.90 | Shop/Dealer Price$921.19 - $1376.04 |
Like many other systems on your vehicle, your power steering operates on pressurized fluid, and the power for pressurizing that fluid is delivered by the engine. Depending on the year, make and model, your car may have a single drive belt, or two belts. In both situations, a belt will operate the power steering pump via a pulley. The belt runs around the pulley, and spins it while the engine operates. When the engine is off, the pulley remains still and the pump does not work.
As with any other pulley in the engine, the power steering pump pulley relies on a bearing to ensure that it operates correctly. Heat and friction will wear the bearings out and they will eventually need to be replaced. There are other instances that could cause problems with the power steering pump pulley, including serious auto accidents that bend or even break the pulley.
Without an operational power steering pump pulley, your entire power steering system will be inoperable. The most common cause of problems here is wear and tear to the pulley bearing. The pulley will need to be removed, the old bearing pulled out, and a new bearing installed. Because of the importance of this system, we recommend having any power steering system problems be diagnosed by one of our expert mechanics.
Some power steering systems aren’t as critical as others, but this one plays an important role in the drivability of your vehicle. If you notice any of the symptoms above, or suspect there’s a problem with the pulley or the bearing, you should have the system inspected immediately.
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