Mercedes C320 Turn Signal Relay Parts
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The average price of a Mercedes C320 turn signal relay is between $9.59 and $9.59.
Where Is The Mercedes C320 Turn Signal Relay Located?
The Mercedes C320 turn signal relay usually sits in an easy-to-miss spot under the hood. You’ll want to look on the driver’s side, near the firewall, inside the main fuse and relay box. Just pop the hood, find the big black cover, and lift it off. On the underside, you’ll find a diagram showing the positions of all the fuses and relays. The turn signal relay blends in with the others, shaped like a small rectangle or square. If you’re unsure, pull out your owner’s manual or a repair guide for a clear diagram or photo—Mercedes tends to pack a lot into a small space, and the manual spells it out.
What Are Common Symptoms Of A Faulty Turn Signal Relay On The C320?
If your Mercedes C320 turn signal relay isn’t working right, you’ll notice some annoying and sometimes confusing symptoms. Turn signals might stop blinking, or they could start strobing at double speed. Sometimes, nothing happens at all—no blinking, no dash lights, not even a click when you move the stalk. Other times, the signals stick on and don’t flash. You might hear a buzzing from the fuse box. These problems almost always get worse over days or weeks. When you see these signs, the relay is telling you it’s time for a change.
How Do You Replace The Turn Signal Relay On A Mercedes C320?
Start by unhooking the negative battery cable so you don’t risk a short. Under the hood, pull the fuse box cover on the driver’s side. Use the picture inside the lid to pick out the turn signal relay—once you spot it, pull it up with a steady hand. It comes out without a fight. Take your new relay, match up the pins, and push it right into place. Put the cover back, reconnect the battery, and see if your turn signals are back in action. The whole job takes less than half an hour, and you don’t need anything fancy for tools.
Can A Blown Fuse Affect The Turn Signal Relay In The C320?
Yes, a blown fuse can shut down the whole Mercedes C320 turn signal relay circuit. If your turn signals aren’t working at all—left, right, front, back—and you’re not hearing any clicks from under the hood, check the fuse before you blame the relay. Look for the right fuse in the panel (the lid diagram or the manual will guide you). If it’s burned out, swap it for a fuse with the same rating. If you keep blowing new fuses, there’s likely a bigger wiring fault or a bad ground somewhere in the electrical system.
Does The Turn Signal Relay Control Other Functions In The C320?
On several C320 years, the turn signal relay doesn’t run just the blinkers—it handles the hazards too. If both your regular blinkers and hazard lights have quit, the relay could be the link. Swap it first. If nothing changes, there may be a problem with the stalk switch, the wiring, or another relay. Each model year is a little different, so if you’re stuck, double-check the manual or a wiring diagram for your specific C320.
Why Buy Your Mercedes C320 Turn Signal Relay From AutohausAZ?
Shopping for a Mercedes C320 turn signal relay shouldn’t be a hassle, and AutohausAZ gets that. Our prices make sense—you skip the dealer markup, so you get a fair deal right off the bat. Customers return because the parts are reliable and our team stands behind them. Shipping moves quick, too, with most orders arriving sooner than expected. If the part’s not a fit, our returns process is straightforward—no drama, just send it back. That way, you can focus on getting your C320 fixed and back on the road. Questions pop up? Our support team sticks with you, ready to solve any issues that come up. Ordering from us is easy, affordable, and dependable—just what you want when your turn signals stop working.
