Name: Audi A5 Sportback 8TA B8.5 5 Door 2012-2016 Rear Left NSR Seat Belt 621421000
Brand: Audi
SKU: 206221714988
Price: 21.44 GBP
Availability: InStock

Audi A5 Sportback 8TA • Rear Left Outer

2012-2016 Audi A5 Sportback B8.5 5 Door Rear Left NSR Seat Belt

FITMENT CHECK BEFORE ORDERING: This is the REAR LEFT OUTER belt assembly for the Audi A5 Sportback 8TA 5-door. The visible unit is marked 621421000 and 000-090H. Compare your original unit's label, bracket shape, webbing colour and mounting arrangement with the photographs below before purchase. Do not order by model name alone.

Audi A5 Sportback rear left seat belt 621421000 actual item

ACTUAL ITEM PHOTO • The unit offered in this listing.

621421000 000-090H seat belt identification label

ACTUAL LABEL PHOTO • Visible identification: 621421000 / 000-090H.

🚘 Correct Vehicle Reference — 5 Door Sportback

This listing is for the A5 Sportback 8TA / first-generation facelift body, not the 2-door Coupe or Cabriolet. The reference vehicles below show the correct five-door Sportback body type. Reference photographs illustrate the vehicle application only and are not photographs of the donor vehicle.

Vehicle reference: Audi A5 Sportback model year 2012.
Vehicle photo: Joakim Holmström, CC BY-SA 3.0.

Vehicle reference: 2013 Audi A5 Sportback 8T facelift.
Vehicle photo: Charles01, CC BY-SA 3.0.

📍 Where This Part Fits

The belt serves the rear-left outer seating position. On a UK right-hand-drive vehicle this is commonly described as NSR / nearside rear. The retractor assembly is mounted behind or adjacent to the left-rear interior/quarter trim and the belt feeds to the outer rear passenger seat.

FRONT OF VEHICLE ↑

FRONT LEFT Passenger	FRONT RIGHT Driver
★ REAR LEFT OUTER NSR — THIS PART	REAR RIGHT OUTER OSR

What it does: the retractor pays out and retracts the seat-belt webbing during normal movement and uses an inertia-locking mechanism to restrict rapid belt extension during sudden vehicle movement. It is a safety-critical occupant restraint component.

🔎 Item Details & Identification

Detail	Verified / Relevant Information
eBay Item Number	147492038837
Vehicle Make	Audi
Vehicle Model	A5 Sportback
Chassis / Generation	8TA / 8T • B8.5 facelift
Body Style	5-door Sportback / liftback
Verified Fitment Years	2012, 2013, 2014, 2015, 2016
Part Type	Rear outer seat belt / retractor assembly
Placement	Rear Left Outer / NSR / Nearside Rear
Primary Visible Part Number	621421000
Secondary Visible Label	000-090H
Catalogue-Family References	8K0857805Q / 8K0857805R are found on matching A5 Sportback rear-belt applications. The exact suffix/colour specification on your existing unit must still be checked.
Interchange Part Number	621421000 / 000-090H — visual and mounting comparison required
Superseded Part Number	No confirmed supersession relationship has been verified; do not assume Q/R suffixes are automatically interchangeable.
Colour	Black webbing / black retractor housing
Visible Construction	Woven synthetic safety webbing, metal mounting/retractor components and moulded retractor housing
Visible Marking	Identification label 621421000 / 000-090H; casing carries a handwritten rear-position marking
Quantity	1 assembly — exactly as photographed
Warranty	30 days

The date-style marking visible on the photographed label appears to include 21.07.12. This should be treated as a component/production label marking rather than proof of a vehicle registration date.

✅ Primary Compatibility Table

Vehicle	Body / Chassis	Years	Position	Status
Audi A5 Sportback	8TA / 8T B8.5 facelift 5-door Sportback	2012-2016	Rear Left Outer / NSR	✓ PRIMARY APPLICATION Match 621421000 / 000-090H + bracket

IMPORTANT: engine size and gearbox are not the main identifiers for this restraint component. Body type, seating position, label number, mounting bracket, belt colour and exact physical design are more important. A buyer with the correct year but a different belt design should not order this unit.

⚠ Cross-Reference Vehicles — Verify Before Ordering

Research shows that 621421000 and the related 8K0857805Q/R family also appear on other Audi platforms. This does not prove that every unit carrying 621421000 has the same bracket, belt colour, side or installation geometry. To prevent incorrect orders, the following applications are treated as cross-reference candidates rather than guaranteed plug-and-play fitments.

Vehicle Family	What We Found	Buying Guidance
Audi A4 B8 / 8K	621421000 and 8K0857805Q/R rear-belt family appears on B8 applications	VERIFY exact number, suffix, mounting bracket, side and colour before ordering
Audi A5 8T Coupe	Related 8K0857805Q/R references appear on 8T rear belts	NOT advertised as confirmed Sportback interchange — body-specific differences may apply
Audi Q5 8R	The supplier number 621421000 is seen on some Q5 belt assemblies	DO NOT assume fit from 621421000 alone — compare the complete vehicle-specific number and bracket

❌ Do Not Order This Part For

Application	Reason
A5 Sportback F5 / B9 generation	Different generation — this listing is for the 8TA / 8T generation
A5 Cabriolet	Different body and restraint arrangement — not confirmed
A5 Coupe based only on year	Do not assume the Sportback unit is interchangeable without an exact number/bracket match
Front left / front right belt	Wrong seating position
Rear centre belt	Wrong seating position / assembly type
Seat-belt buckle / stalk only	This listing is for the belt/retractor assembly, not a buckle stalk
Different colour, bracket or label	Physical specification must match your original component

🎯 ThePartPilot Fitment-First Matching System

We want you to order the correct component the first time. For this part, use the following priority when checking compatibility:

1 — CHECK THE PHOTOGRAPH: compare the overall retractor, webbing, bracket design and fixing points.

2 — CHECK THE LABEL: your existing unit should match 621421000 / 000-090H or be positively cross-referenced to the exact vehicle-specific number.

3 — CHECK POSITION: this listing is REAR LEFT OUTER / NSR, not front, centre or buckle-only.

4 — CHECK BODY: primary application is A5 SPORTBACK 8TA 5-DOOR, not simply any A5 of the same year.

5 — ASK BEFORE ORDERING: if anything differs, send your vehicle details and a clear photograph of your existing part through eBay Messages before purchase.

🛠 Fault Symptoms & Reasons For Replacement

Common Symptoms

• Belt does not retract correctly or retracts unusually slowly.

• Retractor is jammed and the belt cannot be pulled out normally.

• Webbing remains locked when it should release.

• Belt does not lock correctly during a sharp pull.

• Webbing is cut, badly frayed, contaminated or visibly damaged.

• Mounting bracket or retractor housing has accident damage.

Why Correct Specification Matters

A seat belt is a safety-critical restraint. The correct manufacturer-spec assembly is designed around the vehicle's mounting geometry, belt routing and interior layout. An unknown low-cost pattern substitute may differ in bracket geometry, webbing path or operating characteristics.

Matching the correct factory-specification component by photograph and part number provides the strongest basis for correct physical installation.

SAFETY NOTICE: Do not attempt to repair torn webbing or a damaged retractor. If the vehicle has been involved in a collision, has a restraint-system warning or has damaged anchors/buckles, the complete restraint system should be inspected using the manufacturer's repair information. Professional installation is recommended.

A dashboard restraint warning can have several causes. Do not purchase this retractor solely to cure a warning light unless the fault has been correctly diagnosed.

🔧 General Fitting Instructions

These instructions are a general installation outline, not a substitute for Audi workshop information for the exact VIN. Seat-belt mounting torque values are safety critical and are deliberately not guessed here.

STEP 1 — VERIFY THE PART: Before dismantling the car, place the replacement beside the original and compare the retractor housing, mounting tabs, belt length/routing, colour and all identification labels.

STEP 2 — MAKE THE VEHICLE SAFE: Park securely, switch the ignition off and remove the key. If the vehicle configuration includes electrical restraint connections or tensioning components in the work area, follow the manufacturer's battery/SRS isolation procedure before disconnecting anything.

STEP 3 — ACCESS THE REAR RETRACTOR: Remove the required rear-seat side/quarter trim and associated trim pieces carefully until the rear-left retractor and belt anchor points can be accessed.

STEP 4 — RECORD ROUTING: Photograph or note exactly how the belt is routed and oriented before removing the original. The replacement must not be installed twisted.

STEP 5 — REMOVE ORIGINAL ASSEMBLY: Use the correct socket/Torx/triple-square tool for the fasteners fitted to your vehicle. Support the retractor while the final fixing is removed.

STEP 6 — INSTALL REPLACEMENT: Position the replacement in exactly the same orientation and routing as the removed unit. Tighten all restraint anchor/retractor fasteners to the correct Audi workshop specification for the exact VIN and fastener.

STEP 7 — FUNCTION CHECK: Before reinstalling all trim, confirm smooth belt extension, full retraction, no twisting, no rubbing and correct locking response during a firm rapid pull.

STEP 8 — FINAL CHECK: Refit trim securely and ensure nothing traps the webbing. If any restraint-system electrical component was disconnected, complete the appropriate diagnostic/fault-code check.

🧰 Typical Tools Required

Trim Removal Tools Ratchet & Socket Set Torx Bit Set Triple-Square Bit Set Torque Wrench Small Screwdriver / Pick Inspection Light

Fastener type can vary, so inspect your vehicle before starting rather than forcing an incorrect bit into a safety-critical mounting bolt.

⏱ Estimated Repair Time & Static Garage Labour Calculator

Typical workshop time for a straightforward rear outer seat-belt replacement is approximately 0.7 to 1.2 hours. This is an estimate only; trim removal, seized fixings, prior accident damage or diagnostic work can increase the time.

Simple calculation: Garage hourly rate × 0.7 to 1.2 hours = estimated labour cost before any additional diagnosis, parts or applicable taxes.

Garage Labour Rate	Estimated Cost at 0.7 hr	Estimated Cost at 1.2 hr
£60 / hour	£42	£72
£80 / hour	£56	£96
£100 / hour	£70	£120
£120 / hour	£84	£144
£150 / hour	£105	£180

Labour table is illustrative only and is not a quotation from ThePartPilot or any particular garage.

🔩 Fitting Service — Subject To Availability

Workshop fitting may be available subject to technician capacity, vehicle condition and part suitability. If fitting assistance is required, contact us through eBay Messages before making arrangements.

Illustrative workshop image — not ThePartPilot premises.
Workshop photo: Shixart1985, CC BY 2.0.

Illustrative workshop image — fitting subject to availability.
Workshop photo: Shixart1985, CC BY 2.0.

🏁 Why Choose A Matching Manufacturer-Spec Recycled Part?

Correct Vehicle Geometry

A correctly matched manufacturer-spec component is designed around the vehicle's original mounting positions, interior trim, belt routing and occupant-restraint layout.

Better Matching Than Unknown Pattern Parts

Part-number and photograph matching reduces the risk associated with low-cost generic alternatives whose brackets, routing or dimensions may not duplicate the original application.

Lower Cost Than Buying New

A serviceable recycled manufacturer component can provide substantial savings compared with buying a brand-new replacement. Actual savings vary by part and current new-part pricing.

📦 25,000+ Parts In Stock

25,000+ PARTS IN STOCK

PHOTO & PART-NUMBER MATCHING

30 DAY WARRANTY

ThePartPilot keeps a large range of vehicle components on the shelf so buyers can source replacement parts without relying solely on expensive new components.

Illustrative automotive-parts stock image — not our premises.
Parts-store photo: Visitor7, CC BY-SA 3.0.

Illustrative warehouse/boxed-stock image — not our premises.
Warehouse photo: Shixart1985, CC BY 2.0.

📦 Dispatch & Delivery Address

PLEASE CHECK YOUR eBAY DELIVERY ADDRESS BEFORE PAYMENT. We dispatch against the delivery information supplied with the eBay order. Make sure the correct address is selected at checkout before completing the purchase.

Components are prepared for dispatch with protection appropriate to the part. When your order arrives, inspect the package and component before beginning installation.

International delivery: available destinations, postage services, import charges and delivery estimates are those displayed by eBay for your address at checkout. Destination availability can vary by category and service.

↩ Returns, Fitment & Buyer Protection

This listing carries a 30-day return period. We strongly recommend completing the photograph and part-number checks above before purchase. If you are uncertain, contact us through eBay Messages before ordering so fitment can be checked.

Returned components should be securely packaged and returned in the same condition in which they were received, including all components supplied with the order. Any adjustment for a returned item that has suffered a genuine loss in value is handled only where permitted by the applicable eBay return rules.

Our goal is simple: identify the correct part before it leaves the shelf, reducing wasted journeys, unnecessary returns and vehicle downtime.

🧾 VAT / Global Accounting

Where this sale is accounted for under the applicable Global Accounting / margin scheme, VAT is not separately itemised on the invoice.

♻️ Supporting Reuse & Independent Business

♻️ Choosing a serviceable recycled vehicle component keeps an existing part in circulation for longer and can reduce the need for a newly manufactured replacement. Reuse also helps reduce the volume of automotive components entering the waste stream.

❤️ Buying from an independent automotive parts business also supports the people involved in identifying, cataloguing, storing, matching, packing and dispatching thousands of individual components. We appreciate every order and aim to make buying replacement parts as clear and straightforward as possible.

🔍 Unsure about fitment? Do not guess. Send the vehicle details and a clear photograph of your existing component through eBay Messages and compare the numbers and mounting design before ordering.