Mercedes S55 Turn Signal Relay Parts
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Mercedes S55 turn signal relay typically cost between $3.49 and $9.59.
Where Is The Mercedes S55 Turn Signal Relay Located?
You won't always spot the turn signal relay on a Mercedes S55 right away. Most of the time, it sits inside the fuse box in the engine bay, though on some years it winds up tucked under the dashboard on the driver’s side. Pop off the plastic cover or trim to see what’s there. Decent light helps since some spots are tight and not easy to peer into. Grab your owner's manual if you're not sure, since diagrams change between years or trims. Before you pull relays or fuses, always disconnect the battery—safety first with anything electric.
What Are Common Signs Of A Faulty Mercedes S55 Turn Signal Relay?
It doesn't take much for a turn signal relay to show its age. Maybe your blinkers stop working altogether, or they flash much faster than usual. Sometimes your signals get stuck on without blinking, or maybe the usual clicking sound from the dash is missing or oddly quick. If your turn signals fail and you’ve checked both bulbs and fuses, the relay might be next on the list. A dashboard indicator that stays silent is also a red flag. These aren’t always exclusive to the relay—a wiring glitch or wonky switch can do the same—but swapping relays is a quick test to see if it solves the problem.
How Do I Replace The Mercedes S55 Turn Signal Relay?
First, cut all power—remove the battery cable. Find the relay in the fuse box, then give it a careful tug to pull it out. Don’t force it; work it loose to avoid damaging anything nearby. Before you click a new relay into place, check part numbers to make sure it’s a match. Once installed, snap covers back on and hook the battery back up. Now, twist the stalk and see if your signals are working as they should.
Can A Malfunctioning Relay Drain The Battery On A Mercedes S55?
Most days, a bad relay won’t suck your battery dry. But if it sticks closed or has an electrical fault, a slow drain is possible. Maybe you hear a soft click from under the hood with the key out, or lights flicker when the car’s off—it’s rare, but it happens. Usually, a dead battery comes from leaving lights on or another tired component, not the relay itself. Still, if your relay feels suspect and you see these odd symptoms, swap it out. Better safe than stranded.
Is There A Recommended Brand Or Source For Mercedes S55 Turn Signal Relay Replacement?
For something like a turn signal relay on a Mercedes S55, don’t gamble. OEM is the safest bet, whether you get it from the dealer or a trusted European parts seller. Aftermarket options exist, but some cut corners and don’t last, especially on a car that asks as much as an S-Class. Check reviews, double-check your part number, and buy from a place that stands behind what they sell. It’s not worth chasing gremlins because of a cheap relay that quits too soon.
Where Can You Find A Reliable Mercedes S55 Turn Signal Relay?
Shopping for a turn signal relay? AutohausAZ has become a go-to because they keep prices fair and parts in stock. No endless searching or crossing your fingers that a no-name relay will do the trick. They ship fast and if you order the wrong part, their returns are straightforward—no fights or frustrating forms. It’s tough enough to track down small parts for older Mercedes models. That’s why a lot of drivers stick with a place that gets orders right and answers questions without any runaround. A good part at a good price, sent quick—the way it should be. That’s why folks keep coming back to AutohausAZ for their Mercedes fix-ups.
