OE Mercedes-Benz Serpentine Belts

45400505 - : Electrical Wiring Harness for Mercedes-Benz Image

Electrical Wiring Harness

Mercedes-Benz 004-540-05-05
Driver seat belt tensioner squib R12/1. 2 PIN SRS.
$37.18
MSRP $51.00
Save $13.82
27.1% Off
2118600388 - : Adjustment for Mercedes-Benz Image

Adjustment

Mercedes-Benz 211-860-03-88
Seat belt height adjustment, left and right on c-pillar.
Backordered
1239192520 - : Cover for Mercedes-Benz Image

Cover

Mercedes-Benz 123-919-25-20
Lower part;at left seat safety belt retaining rail.
Backordered
1239191020 - : Cover for Mercedes-Benz Image

Cover

Mercedes-Benz 123-919-10-20
Lower part;at right seat safety belt retaining rail.
Backordered
9909218 - : Cap Screw W Hexal Socket for Mercedes-Benz Image

Cap Screw W Hexal Socket

Mercedes-Benz 000-990-92-18
Left seat belt buckle mount. Fastening seatbelt buckle left.
$1.30
MSRP $1.70
Save $0.40
23.5% Off
495453228 - : Plug for Mercedes-Benz Image

Plug

Mercedes-Benz 049-545-32-28
Left safety belt. 5 pin model 1: mqs slots: 5.
$2.57
MSRP $3.40
Save $0.83
24.4% Off
1668600022 - : Anchor Fitting for Mercedes-Benz Image

Anchor Fitting

Mercedes-Benz 166-860-00-22
LEFT SEAT Gefahrgutkennzeichen: 9.3 Miscellaneous dangerous goods (seat belts with pretensioners).
$133.38
MSRP $190.00
Save $56.62
29.8% Off
2782020219 - : Guide Pulley for Mercedes-Benz Image

Guide Pulley

Mercedes-Benz 278-202-02-19
At timing case. For poly-v belt. To timing case cover.
$85.40
MSRP $117.00
Save $31.60
27% Off
1268680030 - : Cap for Mercedes-Benz Image

Cap

Mercedes-Benz 126-868-00-30
Safety belt swivel fitting to side member. Belt end fitting.
Backordered
9927405 - : Bushing for Mercedes-Benz Image

Bushing

Mercedes-Benz 000-992-74-05
Left safety belt. Left and right guides. Belt end fitting.
$2.54
MSRP $3.40
Save $0.86
25.3% Off
2028608469 - : Closure for Mercedes-Benz Image

Closure

Mercedes-Benz 202-860-84-69
Double. Used for rear seat safety belts,in center and outside right.
Backordered

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What Exactly Serpentine Belts Do and How to Replace Them

Serpentine belts, also known as drive belts, power multiple accessories like the alternator, AC compressor, and power steering pump. A worn belt can squeal or snap, causing component failure. Vehicles such as the Mercedes-Benz GLA250 require OEM serpentine belts for precise fit and durability.

How to Replace the Serpentine Belt in Your Mercedes-Benz

1. Inspect Belt for Wear

Look for cracks, fraying, or glazing.

2. Check Pulley Alignment

Ensure pulleys spin freely without wobble.

3. Release the Tensioner

Use proper tools to loosen belt tension.

4. Remove the Old Belt

Slide the belt off the pulleys carefully.

5. Compare With the New Belt

Verify length and rib pattern.

6. Install the New Belt

Follow the routing diagram for proper placement.

7. Test Components

Run the engine to ensure smooth operation.

Other Key Parts to Check

When inspecting a serpentine belt, also review belts, pulleys, and brackets to prevent misalignment or noise issues. Other key components you should check include the following:

  1. Power Steering Belts: Maintain smooth steering.
  2. Drive Pulleys: Guide and support the belt.
  3. Tensioner Brackets: Maintain proper belt tension.

Why Using an OEM Serpentine Belt Is a No-Brainer

OEM belts maintain correct tension, width, and material strength. They prevent slipping and ensure long-lasting performance. Ensure smooth operation of all engine accessories by shopping here at Mercedes OE Parts. Reach out to our team to get the best discounts and deals in your next order.