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Heater Control Unit NTY ERD-AU-004 OE Ref 4F0820521 NTY

Key Specification:

EAN: 5902048084200
Fabrication Number: ERD-AU-004
Fits to: AUDI A6 2004-/WITH AUTOMATIC A/C/
Height [cm]: 7.2
Length [cm]: 10.6

See Full Specification

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£ 59.00

£ 43.80 excl. VAT

Out of stock

SKU:	NTY ERD-AU-004
Brand	NTY

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Specification
Description
OEM Numbers
Compatibilities
Reviews

EAN

5902048084200

Fabrication Number

ERD-AU-004

Fits to

AUDI A6 2004-/WITH AUTOMATIC A/C/

Height [cm]

7.2

Length [cm]

10.6

OEM Reference number

4F0820521

PURPOSE GROUP

Heating/Ventilation - Control Unit

Thickness [mm]

Width [cm]

5.8

Exceptional Heater Control Unit NTY OE Ref for AUDI

This Heater Control Unit NTY OE Ref is designed for those who demand reliability and value for money. Equivalent to OEM Part Number 4F0820521, it’s manufactured by NTY, a name synonymous with quality and precision engineering. Available at an unbeatable price, it includes Reference Number ERD-AU-004 and EAN EAN: 5902048084200 for easy identification.

Our Heating & Ventilation parts are crafted from premium materials, ensuring enhanced durability and long-term performance. Whether you’re dealing with wear and tear or replacing a damaged part, this Heater Control Unit NTY OE Ref offers the perfect blend of quality and affordability.

Why This Heater Control Unit NTY OE Ref Stands Out:

Designed to meet OEM quality standards for a guaranteed fit.
Perfect for
- AUDI
  - A6 Allroad C6 (4FH) From 03/2006 to 08/2011
  - A6 C6 (4F2) From 04/2004 to 08/2011
  - A6 C6 Avant (4F5) From 11/2004 to 08/2011
  - R8 (422, 423) From 04/2007 to 07/2015
  - R8 Spyder (427, 429) From 02/2010 to 07/2015
(check compatibility with your registration).
Backed by a 30-day money-back guarantee for worry-free shopping.

Trust e Auto Parts for reliable parts and quick delivery across the UK and Europe. Upgrade your vehicle today!

Reference number(s) comparable with the original spare part number

AUDI 4F0 820 521 AUDI 4F0 820 521 A VAG 4F0 820 521 VAG 4F0 820 521 A

OE reference number(s) comparable with the original spare part number

AUDI

AUDI A6 Allroad C6 (4FH) From 03/2006 to 08/2011

2.7 TDI quattro 4WD 10/2008-08/2011, 140 kw, 2698 ccm, 190 PS, Estate, Diesel , ENG: CANC

2.7 TDI quattro 4WD 03/2006-10/2008, 132 kw, 2698 ccm, 180 PS, Estate, Diesel , ENG: BPP

4.2 FSI quattro 4WD 05/2006-12/2010, 257 kw, 4163 ccm, 350 PS, Estate, Petrol , ENG: BVJ

3.0 TDI quattro 4WD 05/2006-08/2011, 155 kw, 2967 ccm, 211 PS, Estate, Diesel , ENG: BNG, CDYB

3.0 TDI quattro 4WD 10/2008-08/2011, 176 kw, 2967 ccm, 240 PS, Estate, Diesel , ENG: CDYA, CDYC

3.0 TDI quattro 4WD 05/2006-10/2008, 171 kw, 2967 ccm, 233 PS, Estate, Diesel , ENG: ASB

3.2 FSI quattro 4WD 05/2006-10/2008, 188 kw, 3123 ccm, 255 PS, Estate, Petrol , ENG: AUK

2.7 TDI quattro 4WD 05/2006-08/2011, 120 kw, 2698 ccm, 163 PS, Estate, Diesel , ENG: CAND, BSG

3.0 TFSI quattro 4WD 10/2008-08/2011, 213 kw, 2995 ccm, 290 PS, Estate, Petrol , ENG: CAJA

AUDI A6 C6 (4F2) From 04/2004 to 08/2011

2.7 TDI 4WD 11/2004-10/2008, 132 kw, 2698 ccm, 180 PS, Saloon, Diesel , ENG: BPP

2.0 TFSI 4WD 06/2005-03/2011, 125 kw, 1984 ccm, 170 PS, Saloon, Petrol , ENG: BYK, BPJ

2.7 TDI 4WD 10/2008-03/2011, 140 kw, 2698 ccm, 190 PS, Saloon, Diesel , ENG: CANA

3.0 TDI quattro 4WD 05/2004-05/2006, 165 kw, 2967 ccm, 225 PS, Saloon, Diesel , ENG: BMK

RS6 quattro 4WD 09/2008-08/2010, 426 kw, 4991 ccm, 580 PS, Saloon, Petrol , ENG: BUH

2.0 TDI 4WD 07/2004-10/2008, 103 kw, 1968 ccm, 140 PS, Saloon, Diesel , ENG: BLB, BRE

3.0 TDI quattro 4WD 06/2006-10/2008, 171 kw, 2967 ccm, 233 PS, Saloon, Diesel , ENG: ASB

2.0 TDI 4WD 09/2005-06/2006, 89 kw, 1968 ccm, 121 PS, Saloon, Diesel , ENG: BVG

3.2 FSI 4WD 05/2004-05/2009, 188 kw, 3123 ccm, 255 PS, Saloon, Petrol , ENG: AUK, BKH

3.0 4WD 08/2004-05/2006, 160 kw, 2976 ccm, 218 PS, Saloon, Petrol , ENG: BBJ

2.8 FSI quattro 4WD 06/2007-10/2008, 154 kw, 2773 ccm, 210 PS, Saloon, Petrol , ENG: BDX

3.0 TFSI quattro 4WD 10/2008-03/2011, 213 kw, 2995 ccm, 290 PS, Saloon, Petrol , ENG: CAJA

3.2 FSI quattro 4WD 09/2006-10/2008, 183 kw, 3123 ccm, 249 PS, Saloon, Petrol , ENG: BYU

2.8 FSI 4WD 10/2008-03/2011, 162 kw, 2773 ccm, 220 PS, Saloon, Petrol , ENG: CCEA

2.0 TDI 4WD 04/2009-03/2011, 120 kw, 1968 ccm, 163 PS, Saloon, Diesel , ENG: CAHB

2.8 FSI quattro 4WD 10/2008-03/2011, 140 kw, 2773 ccm, 190 PS, Saloon, Petrol , ENG: CCDA

2.7 TDI 4WD 11/2004-03/2011, 120 kw, 2698 ccm, 163 PS, Saloon, Diesel , ENG: CANB, BSG

3.0 quattro 4WD 05/2004-05/2006, 160 kw, 2976 ccm, 218 PS, Saloon, Petrol , ENG: BBJ

2.7 TDI quattro 4WD 10/2008-03/2011, 140 kw, 2698 ccm, 190 PS, Saloon, Diesel , ENG: CANC

3.0 TDI quattro 4WD 05/2004-03/2011, 155 kw, 2967 ccm, 211 PS, Saloon, Diesel , ENG: BNG, CDYB

2.8 FSI 4WD 11/2006-10/2008, 154 kw, 2773 ccm, 210 PS, Saloon, Petrol , ENG: BDX

2.7 TDI quattro 4WD 11/2004-10/2008, 132 kw, 2698 ccm, 180 PS, Saloon, Diesel , ENG: BPP

2.0 TDI 4WD 11/2008-03/2011, 125 kw, 1968 ccm, 170 PS, Saloon, Diesel , ENG: CAHA

4.2 quattro 4WD 05/2004-05/2006, 246 kw, 4163 ccm, 335 PS, Saloon, Petrol , ENG: BAT, BNK

3.2 FSI quattro 4WD 05/2004-10/2008, 188 kw, 3123 ccm, 255 PS, Saloon, Petrol , ENG: AUK, BKH

4.2 FSI quattro 4WD 06/2006-03/2011, 257 kw, 4163 ccm, 350 PS, Saloon, Petrol , ENG: BVJ

2.4 4WD 05/2004-10/2008, 130 kw, 2393 ccm, 177 PS, Saloon, Petrol , ENG: BDW

3.2 FSI 4WD 05/2009-03/2011, 195 kw, 3197 ccm, 265 PS, Saloon, Petrol , ENG: CALA

3.0 TFSI quattro 4WD 10/2008-03/2011, 220 kw, 2995 ccm, 299 PS, Saloon, Petrol , ENG: CCAA

S6 quattro 4WD 03/2006-03/2011, 320 kw, 5204 ccm, 435 PS, Saloon, Petrol , ENG: BXA

3.0 TDI quattro 4WD 10/2008-03/2011, 176 kw, 2967 ccm, 240 PS, Saloon, Diesel , ENG: CDYA, CDYC

2.7 TDI quattro 4WD 06/2005-03/2011, 120 kw, 2698 ccm, 163 PS, Saloon, Diesel , ENG: CAND, BSG

2.8 FSI quattro 4WD 10/2008-03/2011, 162 kw, 2773 ccm, 220 PS, Saloon, Petrol , ENG: CCEA

2.4 quattro 4WD 01/2005-10/2008, 130 kw, 2393 ccm, 177 PS, Saloon, Petrol , ENG: BDW

2.8 FSI 4WD 10/2008-03/2011, 140 kw, 2773 ccm, 190 PS, Saloon, Petrol , ENG: CCDA

2.0 TDI 4WD 07/2004-03/2011, 100 kw, 1968 ccm, 136 PS, Saloon, Diesel , ENG: CAGB, BNA, BRF

AUDI A6 C6 Avant (4F5) From 11/2004 to 08/2011

2.8 FSI 4WD 11/2006-10/2008, 154 kw, 2773 ccm, 210 PS, Estate, Petrol , ENG: BDX

3.0 TDI quattro 4WD 06/2006-10/2008, 171 kw, 2967 ccm, 233 PS, Estate, Diesel , ENG: ASB

3.0 TDI quattro 4WD 10/2008-08/2011, 176 kw, 2967 ccm, 240 PS, Estate, Diesel , ENG: CDYA, CDYC

2.7 TDI quattro 4WD 11/2004-10/2008, 132 kw, 2698 ccm, 180 PS, Estate, Diesel , ENG: BPP

2.8 FSI quattro 4WD 10/2008-08/2011, 140 kw, 2773 ccm, 190 PS, Estate, Petrol , ENG: CCDA

3.0 TDI quattro 4WD 03/2005-08/2011, 155 kw, 2967 ccm, 211 PS, Estate, Diesel , ENG: BNG, CDYB

2.8 FSI 4WD 10/2008-08/2011, 140 kw, 2773 ccm, 190 PS, Estate, Petrol , ENG: CCDA

2.4 4WD 03/2005-10/2008, 130 kw, 2393 ccm, 177 PS, Estate, Petrol , ENG: BDW

2.7 TDI 4WD 10/2008-08/2011, 140 kw, 2698 ccm, 190 PS, Estate, Diesel , ENG: CANA

3.2 FSI quattro 4WD 03/2005-10/2008, 188 kw, 3123 ccm, 255 PS, Estate, Petrol , ENG: AUK, BKH

3.0 TFSI quattro 4WD 10/2008-08/2011, 220 kw, 2995 ccm, 299 PS, Estate, Petrol , ENG: CCAA

S6 quattro 4WD 03/2006-08/2011, 320 kw, 5204 ccm, 435 PS, Estate, Petrol , ENG: BXA

2.0 TDI 4WD 04/2009-08/2011, 120 kw, 1968 ccm, 163 PS, Estate, Diesel , ENG: CAHB

3.0 TDI quattro 4WD 03/2005-05/2006, 165 kw, 2967 ccm, 225 PS, Estate, Diesel , ENG: BMK

2.7 TDI quattro 4WD 06/2005-08/2011, 120 kw, 2698 ccm, 163 PS, Estate, Diesel , ENG: CAND, BSG

2.0 TDI 4WD 06/2005-10/2008, 103 kw, 1968 ccm, 140 PS, Estate, Diesel , ENG: BLB, BRE

2.0 TDI 4WD 06/2005-08/2011, 100 kw, 1968 ccm, 136 PS, Estate, Diesel , ENG: CAGB, BNA, BRF

2.0 TFSI 4WD 06/2005-08/2011, 125 kw, 1984 ccm, 170 PS, Estate, Petrol , ENG: BPJ

3.0 TFSI quattro 4WD 10/2008-08/2011, 213 kw, 2995 ccm, 290 PS, Estate, Petrol , ENG: CAJA

4.2 FSI quattro 4WD 06/2006-08/2011, 257 kw, 4163 ccm, 350 PS, Estate, Petrol , ENG: BVJ

2.8 FSI quattro 4WD 10/2008-08/2011, 162 kw, 2773 ccm, 220 PS, Estate, Petrol , ENG: CCEA

2.7 TDI 4WD 03/2005-10/2008, 132 kw, 2698 ccm, 180 PS, Estate, Diesel , ENG: BPP

2.0 TDI 4WD 09/2005-06/2006, 89 kw, 1968 ccm, 121 PS, Estate, Diesel , ENG: BVG

2.8 FSI 4WD 10/2008-08/2011, 162 kw, 2773 ccm, 220 PS, Estate, Petrol , ENG: CCEA

2.4 quattro 4WD 03/2005-10/2008, 130 kw, 2393 ccm, 177 PS, Estate, Petrol , ENG: BDW

RS6 quattro 4WD 04/2008-08/2010, 426 kw, 4991 ccm, 580 PS, Estate, Petrol , ENG: BUH

2.7 TDI quattro 4WD 10/2008-08/2011, 140 kw, 2698 ccm, 190 PS, Estate, Diesel , ENG: CANC

2.8 FSI quattro 4WD 06/2007-10/2008, 154 kw, 2773 ccm, 210 PS, Estate, Petrol , ENG: BDX

4.2 quattro 4WD 03/2005-05/2006, 246 kw, 4163 ccm, 335 PS, Estate, Petrol , ENG: BAT

2.0 TDI 4WD 10/2008-08/2011, 125 kw, 1968 ccm, 170 PS, Estate, Diesel , ENG: CAHA

3.2 FSI 4WD 03/2005-10/2008, 188 kw, 3123 ccm, 255 PS, Estate, Petrol , ENG: AUK

2.7 TDI 4WD 03/2005-08/2011, 120 kw, 2698 ccm, 163 PS, Estate, Diesel , ENG: CANB, BSG

3.0 4WD 03/2005-05/2006, 160 kw, 2976 ccm, 218 PS, Estate, Petrol , ENG: BBJ

3.0 quattro 4WD 03/2005-05/2006, 160 kw, 2976 ccm, 218 PS, Estate, Petrol , ENG: BBJ

AUDI R8 (422, 423) From 04/2007 to 07/2015

5.2 FSI quattro 4WD 05/2012-07/2015, 404 kw, 5204 ccm, 549 PS, Coupe, Petrol , ENG: CTPA

5.2 FSI quattro 4WD 07/2014-07/2015, 419 kw, 5204 ccm, 570 PS, Coupe, Petrol , ENG: CTPB

4.2 FSI quattro 4WD 07/2010-07/2015, 316 kw, 4163 ccm, 430 PS, Coupe, Petrol , ENG: CNDA

5.2 FSI quattro 4WD 04/2009-07/2015, 386 kw, 5204 ccm, 525 PS, Coupe, Petrol , ENG: CTYA, BUJ

4.2 FSI quattro 4WD 04/2007-09/2010, 309 kw, 4163 ccm, 420 PS, Coupe, Petrol , ENG: BYH

5.2 FSI quattro 4WD 11/2010-07/2015, 412 kw, 5204 ccm, 560 PS, Coupe, Petrol , ENG: CMPA

AUDI R8 Spyder (427, 429) From 02/2010 to 07/2015

4.2 FSI quattro 4WD 09/2010-07/2015, 316 kw, 4163 ccm, 430 PS, Convertible, Petrol , ENG: CNDA

5.2 FSI quattro 4WD 02/2010-07/2015, 386 kw, 5204 ccm, 525 PS, Convertible, Petrol , ENG: CTYA, BUJ

5.2 FSI quattro 4WD 11/2011-07/2015, 412 kw, 5204 ccm, 560 PS, Convertible, Petrol , ENG: CMPA

Berry
12 Nov, 2025
elderly car so really pleased that the part could be supplied :-) Correct part arrived swiftly - excellent - thank you
Edward & Susan
20 OCT, 2025
These guys were real helpful when I was looking for an EGR valve. Great communications and fast delivery, the valve did exactly as It was meant to do and it was a lot cheaper than everywhere else I looked. I'll be using eAuto Parts again. Top banana.
Charlie
27 AUG, 2025
eAuto Parts made me happy because it only took 2 minutes to order the part and at a very good price, also very quick delivery, will definitely deal with them again.
Adam Taylor
12 May, 2025
Quick enquiry response, easy buying and quick delivery. Quality of goods was good and fitted with no problem (Suzuki bonnet hinges.) recommended.
Helena Garcia
2 January, 2025
The correct part was rapidly identified and located, and was despatched promply to my chosen repairer in time for the work to be done on schedule. Very pleased with the service and will be using eAuto Parts again.