Mercedes-Benz ML320 Power Steering Pump Replacement Costs

Estimate price near me

Service Location

Customer Ratings

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

See availability

Customer Ratings

Power Steering Pump Replacement Service

How much does a Power Steering Pump Replacement cost?

On average, the cost for a Mercedes-Benz ML320 Power Steering Pump Replacement is $697 with $347 for parts and $350 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2000 Mercedes-Benz ML320V6-3.2L	Service typePower Steering Pump Replacement	Estimate$1080.64	Shop/Dealer Price$1269.68 - $1801.34
2002 Mercedes-Benz ML320V6-3.2L	Service typePower Steering Pump Replacement	Estimate$1072.71	Shop/Dealer Price$1254.34 - $1780.45
2008 Mercedes-Benz ML320V6-3.0L Turbo Diesel	Service typePower Steering Pump Replacement	Estimate$1277.53	Shop/Dealer Price$1497.18 - $2134.17
2009 Mercedes-Benz ML320V6-3.0L Turbo Diesel	Service typePower Steering Pump Replacement	Estimate$1277.53	Shop/Dealer Price$1497.17 - $2134.16
1999 Mercedes-Benz ML320V6-3.2L	Service typePower Steering Pump Replacement	Estimate$1264.47	Shop/Dealer Price$1494.72 - $2148.74
2001 Mercedes-Benz ML320V6-3.2L	Service typePower Steering Pump Replacement	Estimate$1058.12	Shop/Dealer Price$1240.14 - $1766.56
2003 Mercedes-Benz ML320V6-3.2L	Service typePower Steering Pump Replacement	Estimate$1058.12	Shop/Dealer Price$1239.60 - $1765.60
2007 Mercedes-Benz ML320V6-3.0L Turbo Diesel	Service typePower Steering Pump Replacement	Estimate$1417.41	Shop/Dealer Price$1672.02 - $2413.92

Show example Mercedes-Benz ML320 Power Steering Pump Replacement prices

What is the power steering pump and how does it work?

The power steering pump is a belt-driven or electric-driven hydraulic pump that generates the hydraulic pressure needed to provide power steering assist. It develops output pressures of 1,000 PSI or more. The pump output is directed to the steering gear, often a rack and pinion type unit, where the hydraulic pressure pushes on the steering rack, greatly reducing the effort it would otherwise take to turn the steering wheel.

Power Steering

When to consider replacing the power steering pump:

Groaning or whining noise when turning. Noise can occur if there is wear on the pump bearings or impeller vanes. A low fluid level or trapped air can also cause noises. If the pump has already been operating while dry, adding fluid may not resolve the noise and replacement of the pump might be necessary.
Power steering fluid leaks. Leaks can develop at pump seals, threaded connections, hoses, or on the steering rack and pinion unit. Pump seal leaks will generally require a replacement.
Difficult steering. Should you notice it is harder to turn the steering wheel, it might mean the power steering pump output pressure is too low, or there could be blockages in the pump or lines.
Damage to the pump pulley. Should the pump pulley become damaged or is loose on the pump shaft, you might detect vibration, drive belt damage, or hard steering. Either the pulley will have to be serviced or the pump assembly replaced.

How do mechanics replace the power steering pump?

If driven by a drive belt, the power steering pump is bolted to the engine via a bracket that allows for adjustment of the pump drive belt. Once the engine is cold, and safe to work on, the drive belt is removed.
If driven by an electric pump, the pump may be mounted in conjunction with the steering shaft or in conjunction with the steering rack. With either a drive belt or electric pump, removal of any dash, panel, or steering components is performed to access the pump.
The threaded connectors to the pump inlet and outlet are loosened and removed.
Any mounting bolts and brackets are removed so the pump can be removed.
If the old pump has failed catastrophically, or there is reason to suspect contaminants in the power steering hoses, the system is flushed.
The new pump is bolted on, the pressure and return hoses attached and the system is bled of all air. If pump is belt-driven, it is tightened to the manufacturer’s specification.
Finally, the engine is run and the car is road tested to confirm normal steering effort. If a new drive belt was installed, belt tension is measured again, and adjusted as needed, after the belt has run for a few minutes.

Is it safe to drive with a power steering pump problem?

No. If the power steering pump is operated without an adequate amount of fluid, and the pump reservoir will not hold fluid due to a large leak. The pump could seize, which would snap the serpentine belt and likely leave you stranded. If the pump turns and there is adequate fluid, but there is no power assist, it will require much greater effort to turn the steering wheel, and that presents inherent safety risks. Generally, the wisest course is to seek immediate repairs if you suspect a problem with any component in your car’s power steering system.

When replacing the power steering pump keep in mind:

Any belts driving the pump should be inspected and replaced as needed. The pump will only produce the required hydraulic pressure if it is driven by the belt at an adequate speed.
Power steering leaks from aged rubber hoses, particularly where the rubber is crimped to the steel tube, are not unusual and should be carefully inspected. The system operates under high pressure. The fluid is flammable, and if leaking fluid happens to contact a hot engine part, a fire might result. You always want to be sure the hoses and connections are sound.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(4)

Rating Summary

4

0

0

0

0

4

0

0

0

0

SEE REVIEWS NEAR ME

Excellent Rating

(4)

Rating Summary

4

0

0

0

0

4

0

0

0

0

SEE REVIEWS NEAR ME

Recent articles & questions

How Does a Timing Chain Work?

Your Your timing chain is absolutely essential to the operation of your vehicle. If it breaks, your car isn’t going to go anywhere, and you could end up with engine damage. So, how does the timing chain work, and what...

How to Choose a LoJack System For Your Car

LoJack LoJack is the trade name for a radio transmitter technology system that allows vehicles to be tracked if they have been moved unwantedly, or have been stolen. LoJack’s trademark technology is the only one on the market used directly...

A Buyer’s Guide to the 2012 Cadillac SRX

The The 2012 Cadillac SRX is one of Cadillac’s top sellers and one of the more popular luxury crossover SUVs on the market. It has a fuel saving eco feature along with being practical and comfortable. Once the eco mode...

Can't shift out of park - 2007 Dodge Sprinter 3500

Hi there, thanks for writing in about your 2007 Dodge Sprinter. It looks like there is a technical service bulletin (https://www.yourmechanic.com/article/how-to-use-a-technical-service-bulletin-tsb-to-diagnose-and-repair-a-car-by-valerie-johnston) that addressed the issue. The electronic shift module will need reprogrammed by the dealer to repair the shifter shifting...

2000 chevy Silverado code p0307

Hi There, A misfire may definitely be caused by many different things, however since you have addressed the majority of the usual issues that cause this, the next likely issue would in fact be a fuel injector (https://www.yourmechanic.com/services/fuel-injector-replacement) that may...

The engine was still on when i shut the key off and i saw a smoke coming out. I put the gear on reverse and back to park the smoke stoppe, i drove the car to the mechanic that installed the remote starter for me yesterday. He had to remove the remote starter kit brain for the car to shut off but now when we turn on the key the car won't start anymore the battery is good but they key doesn't work in the engine anymore.

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com