Mercedes CL500 Voltage Regulator Parts

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Mercedes CL500
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Electrical, Charging and Starting
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Voltage Regulator
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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....
2000, 2001, 2002, 2003, 2004, 2005, 2006 Mercedes CL500
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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.
1998, 1999 Mercedes CL500
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Leaves closest warehouse today if ordered before 2 PM MST.
$10.39
Reg
$10.82
List
$120.00

Mercedes CL500 voltage regulator typically cost between $10.39 and $43.99.

What Symptoms Indicate That The Mercedes CL500 Voltage Regulator Is Failing?

If the Mercedes CL500 voltage regulator starts to go bad, you’ll probably spot changes right away. Headlights may dim or flicker, even when the engine is running steady. Random dashboard warnings show up—sometimes it’s the battery, other times it’s indicator lights you haven’t seen before. Electronics can misbehave, with windows stuck halfway down or interior lights fading faster than usual. Every once in a while, the car might struggle to start. In rare cases, you’ll notice the engine stutter, almost like it’s running out of breath. If these odd things pop up together, it’s smart to have a mechanic check your charging system soon so you’re not stranded at the worst moment.

How Can You Test The Mercedes CL500 Voltage Regulator?

To check the Mercedes CL500 voltage regulator, grab a multimeter and measure battery voltage with the engine off—most show around 12.6 volts. Start the car, and watch the numbers climb. Healthy readings sit between 13.5 and 14.5 volts. Turn on the headlights and AC to put a load on things. Good systems don’t drop or spike much; values outside this window mean something’s off. Steady low readings, or voltage creeping up past 15 volts, say the regulator may be ready to call it quits. Always wear gloves and eye protection because a slip could short things out or lead to a shock.

What Are The Main Causes Of Mercedes CL500 Voltage Regulator Failure?

The Mercedes CL500 voltage regulator can run its course from natural age, shaking from daily engine use, and surges in the electrical system. Sometimes, heat or engine leaks let moisture find its way in, causing corrosion where it matters most. Faulty alternators also speed up wear, making the voltage regulator pick up the slack until it’s too much. Even swapping in bargain-grade parts can bring problems sooner than expected. Keeping terminals clean and using quality parts help slow down failure, but nothing lasts forever.

Can You Replace The Mercedes CL500 Voltage Regulator Yourself?

Swapping out the Mercedes CL500 voltage regulator isn’t complicated if you’re comfortable turning wrenches. On these cars, the regulator sits with or inside the alternator, so you’ll need to take out the alternator for access. First, disconnect the battery. Next, move the serpentine belt and loosen the alternator bolts, then pull the old part free. Install the new regulator, making sure contacts line up. Put everything back in reverse order, and reconnect the battery. If you haven’t tackled repairs like this before, consider letting a trusted shop handle it. The electrical system isn’t forgiving if a step gets missed.

How Long Does A Mercedes CL500 Voltage Regulator Last?

Most Mercedes CL500 voltage regulators stick with you for 80,000 to 120,000 miles. Noise, frequent stops and starts, or city traffic can trim that range. Drivers who keep up with regular checks—especially around belts, batteries, and cables—typically get more life from each regulator. Replacing worn parts before they drag down the rest of the system will do you a favor in the long run. As ever, don’t ignore warning lights or sluggish starts; they rarely fix themselves.

Where Can You Find An Affordable Mercedes CL500 Voltage Regulator?

Need a new voltage regulator for your CL500? AutohausAZ consistently offers lower prices than most dealers, plus delivery is quick and dependable. If the part isn’t the right fit, returns are painless. Pick quality and value so you’re not left paying extra or stuck with the wrong part.