Mercedes CLS55 Starter Relay Parts
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Based on industry averages you can expect to pay between $9.59 and $12.59 for a Mercedes CLS55 starter relay.
What Are The Signs Of A Bad Mercedes CLS55 Starter Relay?
A bad Mercedes CLS55 starter relay doesn’t usually go unnoticed. You might twist the key and hear a sharp click, but the engine stays silent. Sometimes, you’ll get nothing at all—not even a sound, though the dash lights still come on. Now and then, the car starts right up, only for the problem to return later. In more severe cases, you can catch a faint burnt smell from under the hood, or spot charred spots near the relay. These signs often point to issues in the relay, but loose or corroded wiring can play a part too. It pays to check the relay and its wires before you swap any parts.
Where Is The Starter Relay Located On the Mercedes CLS55?
You’ll find the Mercedes CLS55 starter relay in the fuse and relay box, near the driver’s side firewall, tucked under the hood. Pop the lid off the box and you’ll see a cluster of relays and fuses. The inside cover, or your car’s manual, will have a diagram to help you spot the right relay. Before diving in, it’s smart to disconnect the battery—this helps avoid shocks and keeps your hands safe from surprise zaps.
How Do You Test The Mercedes CLS55 Starter Relay?
To check if the Mercedes CLS55 starter relay is working, start by making sure the battery’s good and cables are clean. Take the relay out of its socket in the fuse box. With a multimeter, measure resistance between the relay’s terminals. Then, apply 12 volts to the control side. If the relay is fine, you’ll hear a solid click and see the right resistance. No sound or strange numbers mean the relay’s gone bad. Don’t forget to look at the fuses and wires, since issues there can mask a healthy relay.
Can You Bypass The Starter Relay On A Mercedes CLS55?
Bypassing the Mercedes CLS55 starter relay isn’t meant as a long-term fix, but some mechanics do it for quick testing. They bridge the relay’s input and output with a wire. If the engine turns over, you know the relay’s at fault. This should only be a brief check—leaving it bypassed can hurt the electrical system or cause new problems down the road. Always put in a fresh relay once you’re sure it’s the root cause.
What Causes Repeated Failure Of the Mercedes CLS55 Starter Relay?
If you keep losing Mercedes CLS55 starter relays, something else likely isn’t right. High resistance in the wires, bad connections, or even a weak battery can overload the relay and burn it out. Water or oil leaks into the fuse box can spark shorts and kill relays fast. An old ignition switch or tired starter motor ramps up stress and causes early failure as well. Fixing the real problem is the only way to make sure a new relay lasts.
Why Buy Your Mercedes CLS55 Starter Relay From AutohausAZ?
Getting your Mercedes CLS55 starter relay at AutohausAZ takes the stress out of fixing your car. Prices run low, so you won’t empty your wallet. You skip the endless search—everything is in one place. Shipping comes fast, sparing you from long waits when your car’s down. Didn’t get the right part? Use our easy returns and swap it out. We keep things plain and up front, no jargon or runarounds. Any time you need advice or run into a snag, our team steps in. We want you to spend more time driving, less time dealing with car headaches. Leave the parts to us and hit the road with confidence.

