Mercedes S500 Voltage Regulator Parts

Showing 3 out of 3 part(s) found in our catalog.

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Mercedes S500
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Electrical, Charging and Starting
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Voltage Regulator
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OEM
This unit is latest version used on numerous BOSCH alternators, please verify appearance and part number on existing unit prior to ordering. Replaces earlier versions F00M144138 and F00M145357 as well....
2002, 2003, 2004, 2005, 2006 Mercedes S500
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$43.99
Reg
$45.82
List
$192.00
OEM
For models with Bosch alternator. Please verify part number on existing regulator prior to ordering. 1 per car.
1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 Mercedes S500
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$10.39
Reg
$10.82
List
$120.00
2003, 2004 Mercedes S500
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Leaves closest warehouse today if ordered before 2 PM MST.
$39.99
Reg
$41.66
List
$192.00

The average cost of a Mercedes S500 voltage regulator is between $10.39 and $43.99.

What Are Signs Of A Failing Mercedes S500 Voltage Regulator?

Spotting issues early with the Mercedes S500 voltage regulator makes all the difference. Maybe your headlights dim at stoplights, or dashboard lights start to pulse. Sometimes, the radio cuts out for no reason, or the windows move slower than usual. A burning smell under the hood might catch your attention while sitting in traffic. You could even notice the battery running low much sooner than before. When strange electrical quirks show up, it often points right back to the voltage regulator. Getting ahead of the issue can keep you from getting stuck later on.

How Do You Test The Mercedes S500 Voltage Regulator?

Checking the Mercedes S500 voltage regulator takes a bit of patience and the right tool. Grab a multimeter and test the battery with the engine off first. You’ll want to see somewhere near 12.6 volts. Fire up the engine, then check it again. Anything between 13.5 and 14.7 volts is typically normal. Lower? The regulator might be weak. Higher? Now you might be dealing with overcharging. Look at wiring for any green corrosion or loose clips. If things still seem off, sometimes a specialty alternator tester provides extra insight. If you’re not sure, a phone call or visit to your local shop can keep you from making a costly mistake.

What Causes The Mercedes S500 Voltage Regulator To Fail?

A Mercedes S500 voltage regulator won’t last forever. Heat wears it down over time, and constant exposure just hastens the problem. Sometimes it’s as simple as old age or a loose wire that’s been shaking around on rough roads. If the alternator struggles or the battery is on its way out, they can drag the regulator down with them. Dirt and oil buildup make things worse, trapping heat and causing even more stress. A quick look under the hood every so often helps you catch trouble before it starts.

How Much Should It Cost To Replace The Mercedes S500 Voltage Regulator?

Replacing a Mercedes S500 voltage regulator isn’t always a wallet-breaker, but prices move around depending on what you choose. Expect the part to land between $50 and $200, sometimes more if you go for a genuine Mercedes option. Labor depends on who’s doing the job and how deep they need to go—figure $100 to $300 as a ballpark. Older models can be tricky, usually bumping up the price. Sometimes the alternator and regulator are swapped as a pair if both have some age, which can save trouble down the road.

Can You Drive With A Bad Mercedes S500 Voltage Regulator?

Driving with a bad Mercedes S500 voltage regulator isn’t a great idea. Maybe you’ll get by for a bit, but it’s a gamble. Soon enough, your battery gives out, and electronics start acting up. Failing regulators sometimes create high voltage, putting the battery and fragile computers at risk. You could go from a simple repair to a much bigger bill. If you catch warning signs, try to get repairs done before you become stranded in a parking lot or on the freeway.

Why Buy Your Mercedes S500 Voltage Regulator From AutohausAZ?

At AutohausAZ, getting a Mercedes S500 voltage regulator comes with perks. The prices run lower than most, which means you hold onto more of your money. Quick shipping helps when you’re in a bind, and if something isn’t right, returns don’t cause a headache. Customer service is ready when you have a question or problem. It’s about making your fix simple and stress-free, so you get back on the road fast.