When doing replacement or upgrading on 1978 – 1988 Audi 5000 4000 Quattro CS S, the bulb size guide is necessary for you to take the reference.

1980 – 1987 Audi 4000 Bulb Size Guide
Low Beam Headlight	1980 – 1981	4652
	1982 – 1984	H4656
High Beam Headlight	1980 – 1984	H4651
High Beam and Low Beam Headlight	1985 – 1987	9004
Back Up Light	1980 – 1987	1156
Brake	1980 – 1987	1156
Dome Light	1980 – 1981, 1985 – 1987	578
	1982 – 1984	6411
Front Side Marker	1980 – 1987	12256
Front Turn Signal	1982 – 1984	1157
	1980 – 1981, 1985 – 1987	P21/5W
License Plate	1980 – 1987	T4W
Parking Light	1980 – 1987	1157
Rear Side Marker	1982 – 1987	12814
	1980 – 1981	12929
Rear Turn Signal	1980 – 1987	1156
Tail Light	1980 – 1987	12814
Center High Mount Stop Light	1985 – 1987	194
Trunk	1985 – 1987	DE3423

 

1984 – 1987 Audi 4000 Quattro Bulb Size Guide
Low Beam Headlight	1984	H4656
High Beam Headlight	1984	H4651
High Beam and Low Beam Headlight	1985 – 1987	9004
Back Up Light	1984 – 1987	1156
Brake	1984 – 1987	1156
Dome Light	1985 – 1987	578
	1984	6411
Front Side Marker	1984 – 1987	12256
Front Turn Signal	1984	1157
	1985 – 1987	P21/5W
License Plate	1984 – 1987	T4W
Parking Light	1984 – 1987	1157
Rear Side Marker	1984 – 1987	12814
Rear Turn Signal	1984 – 1987	1156
Tail Light	1984 – 1987	12814
Center High Mount Stop Light	1985 – 1987	194
Trunk	1985 – 1987	DE3423

 

1978 – 1987 Audi 5000 Bulb Size Guide
Low Beam Headlight	1980 – 1985	4652
	1978 – 1979	H5006
High Beam Headlight	1980 – 1985	H4651
	1978 – 1979	H5001
High Beam and Low Beam Headlight	1986 – 1987	9004
Back Up Light	1978 – 1979	1073
	1980 – 1987	1156
Brake	1980 – 1985	1156
	1978 – 1979, 1986 – 1987	1157
Dome Light	1980 – 1987	578
Front Side Marker	1980 – 1985	12256
	1986 – 1987	12821
	1979	1816
	1978	194
Front Turn Signal	1978 – 1979	1157
	1980 – 1987	P21/5W
License Plate	1978 – 1979	1816
	1980 – 1987	T4W
Parking Light	1978 – 1987	1157
Rear Side Marker	1980 – 1981, 1983, 1985	12929
	1978 – 1979	1816
	1982, 1984	T4W
Rear Turn Signal	1978 – 1987	1156
Tail Light	1980 – 1987	12814
Center High Mount Stop Light	1986 – 1987	194
Courtesy	1986 – 1987	6418
Engine Compartment Light	1986 – 1987	12814
Glove Box	1986 – 1987	12256
Inner Tail Light	1978 – 1979	67
Outer Tail Light	1978 – 1979	1157
Trunk	1986 – 1987	DE3423

 

1988 Audi 5000 CS Bulb Size Guide
High Beam and Low Beam Headlight	1988	9004
Front Fog Light	1988	H3-55W
Back Up Light	1988	P21W
Brake	1988	1157
Dome Light	1988	578
Front Side Marker	1988	12256
Front Turn Signal	1988	P21W
License Plate	1988	T4W
Parking Light	1988	12814
Rear Turn Signal	1988	1156
Center High Mount Stop Light	1988	12961
Engine Compartment Light	1988	T4W
Glove Box	1988	12256
Inner Tail Light	1988	12821
Outer Tail Light	1988	1157
Trunk	1988	DE3423

 

1988 Audi 5000 S Bulb Size Guide
High Beam and Low Beam Headlight	1988	9004
Front Fog Light	1988	H3-55W
Back Up Light	1988	1156
Brake	1988	1157
Dome Light	1988	578
Front Side Marker	1988	12814
Front Turn Signal	1988	P21W
License Plate	1988	T4W
Parking Light	1988	12814
Rear Turn Signal	1988	1156
Center High Mount Stop Light	1988	12961
Engine Compartment Light	1988	T4W
Glove Box	1988	12256
Inner Tail Light	1988	12821
Outer Tail Light	1988	1157
Trunk	1988	DE3423

 

1986 – 1987 Audi 5000 Quattro Bulb Size Guide
High Beam and Low Beam Headlight	1986 – 1987	9004
Back Up Light	1986 – 1987	1156
Brake	1986 – 1987	1157
Dome Light	1986 – 1987	578
Front Side Marker	1986 – 1987	12821
Front Turn Signal	1986 – 1987	P21/5W
License Plate	1986 – 1987	T4W
Parking Light	1986 – 1987	1157
Rear Turn Signal	1986 – 1987	1156
Tail Light	1986 – 1987	12814
Center High Mount Stop Light	1986 – 1987	194
Courtesy	1986 – 1987	6418
Engine Compartment Light	1986 – 1987	12814
Glove Box	1986 – 1987	12256
Trunk	1986 – 1987	DE3423

 

1988 Audi 5000 Quattro CS Bulb Size Guide
High Beam and Low Beam Headlight	1988	9004
Front Fog Light	1988	H3-55W
Back Up Light	1988	P21W
Brake	1988	1157
Dome Light	1988	578
Front Side Marker	1988	12256
Front Turn Signal	1988	P21W
License Plate	1988	T4W
Parking Light	1988	12814
Rear Turn Signal	1988	1156
Center High Mount Stop Light	1988	12961
Engine Compartment Light	1988	T4W
Glove Box	1988	12256
Inner Tail Light	1988	12821
Outer Tail Light	1988	1157
Trunk	1988	DE3423

 

1988 Audi 5000 Quattro S Bulb Size Guide
High Beam and Low Beam Headlight	1988	9004
Front Fog Light	1988	H3-55W
Back Up Light	1988	1156
Brake	1988	1157
Dome Light	1988	578
Front Side Marker	1988	12814
Front Turn Signal	1988	P21W
License Plate	1988	T4W
Parking Light	1988	12814
Rear Turn Signal	1988	1156
Center High Mount Stop Light	1988	12961
Engine Compartment Light	1988	T4W
Glove Box	1988	12256
Inner Tail Light	1988	12821
Outer Tail Light	1988	1157
Trunk	1988	DE3423