LLTeK is the premiere
aftermarket specialist when it comes to lighting and headlight products for the
Audi A4 B6/8E sedan range of cars. LLTeK wants to explain to Audi owners new
important information regarding headlight lighting upgrades for the A4
B6/8E sedan car for both e-code and DOT specifications. Consult LLTeK and
ensure the headlight upgrade you receive is the headlight purchase you need.
LLTeK's experience with lighting for Audi cars will help you make the right
HEADLIGHT INTERIOR DESIGN FEATURES AND COSMETICS:
- LLTeK identifies A4 8E
headlight versions in its current 2005 catalog as "Chrome" (A4 only),
"Black" (S4 - will fit in A4) or "Titanium" (A4 - will not
fit S4). "Titanium" and "Black" are to be considered one
and the same color.
- The "cosmetic"
look is a very deep dark gray color - almost black. It is not (nor has it ever
been) jet black.
- Chrome versions continue
to be available for the A4 only (not S4).
- S4 versions fit into A4
- For ease of catalog
reference, "Black" versions apply to S4 cars while
"Titanium" refer to A4 cars. Again the "cosmetic" color of
the A4 or S4 headlight housing is identical.
Tips to Help Identify Your Ballast To be absolutely sure of
the ballast type in your A4 car, you can pull out one of the two headlights.
The easier of the two is, generally speaking, the housing on the driver's side.
Once the headlight is out of the car, the back of the ballast can easily be
seen and does not need to be removed from the headlight. Study the pictures
that accompany this bulletin because they will provide you with the quickest
and easiest way to identify your system. If, after reading, you are still not
sure of your ballast type; we have provided photo documents of what you would
encounter if you remove the ballast.
Tips - Visible Ballast Exterior Sufaceof 5G and 5GL
5G bar code sticker shows
printed ID "LAD 5G"while 5GL bar code sticker has printed ID
5G ballast clearly
stamped while 5GL shows no stamped ID - (this may change)
5G shows a large
indentation in surface while 5GL shows 4 raised protrusions in
Note: 5G and 5GL ballasts share the same measurements in length and
width - this is as far as similarities go.
Tips - Interior Markings Available When Ballast Removed
5G Ballast has a 12-pin
connector (2 rows of 6 - power in) while 5GL Ballst has a 4-pin connector (2
rows of 2 - power in). Note the depression around 12-pin connector while 5GL
4-pin connector shows none.
5G Overall thickness is
about ¾ of an inch (plus lump) while 5GL has an overall thickness is about
a ½ inch
The A4 Titanium
Headlight Differs from the S4 Black Headlight
Cosmetically the S4 version and A4 versions are the same but there are
differences.The A4 Titanium ballast pocket is located under the headlight. The
S4 Black Headlight has the 5GL ballast pocket located behind the headlight.
The diameter of the
projector iris is approximately 10% larger on the S4 housing than on the A4
version. The iris size differential does not mean a brighter headlight beam.
However, we assume it translates to increased perormance. While the S4
headlight can be installed on the A4 car, the A4 headlight cannot be installed
on the S4 car.
Note the difference in lens size when comparing each projector
- The pricing on the A4 is slightly lower than the S4 version. When
purchasing a set the price differential is $78 per headlight ($156 per set.)
Note: you cannot physically install the A4 headlight in the S4 car to save
money. It will not fit.
- The ballast used is the newer, thinner 5GL. However, if you own a set
of 5G ballasts, they can be reused in the newer headlight but only with a
special adapter plug fitting with the A4 headlight only. The S4 headlight can only use the 5GL
A4 B6/8E Production
Note: The Ballast Type dates below are series production dates,
not Audi car model years.
Here are production date details provided by the manufacturer that can help you
identify your ballast type without headlight removal. There will be some
production model crossover and so these dates are useful as approximate guides
only. There are two HID D1 versions and one HID D2 version for the A4 B6/8E
- 4G. First limited
production series: A4 production - December 2000 to November 2001 (D2
systems with 4G ballast). These headlights are quite rare in the USA and
- 5G. Second production
series: A4 production - October 2001 to December 2002 (D1 system with 5G
ballast). Again, 5G ballast need conversion plugs to re-use in current
production A4 headlights.
- 5GL. Third and final
production series: A4 production - January 2003 to end of B6 production. B7
uses a totally different headlight (D1 system with new ballast).
- 5GL. All S4
production: S4 production - all B6 years (D1 with 5GL ballast) - no need to
Picture of the Early 4G Ballast (Very Few in North America).
Know Your Headlight Specifications
- Certain exceptionally
early A4 B6 /8E cars with HID (mostly in Europe but some made it to the
USA/Canada), utilized the previous generation 4G D2 ballast and HID D2 bulb
system. If you are an exceptionally early model A4 B6/8E owner contemplating a
headlight upgrade which is currently HID D2, you will need to purchase 5GL
ballasts to work with the newer headlights. LLTeK may, at its option, trade
your older 4G for the 5GL. Call. Currently LLTeK has no plans to import e-codes
to use with older D2 technology.
- Early A4 B6/8E (USA and
Canada) cars delivered with HID D1 use the first generation fatter 5G ballast
located in a pocket under the headlight. These ballasts can only be re-used
with the newer A4 headlights (that LLTeK is now receiving) providing a special
conversion plug is fitted (which LLTeK has designed) and which will allow the
owner of a 5G ballast to use their ballast with a an A4headlight designed for
the 5GL ballast. The 5G Ballast will not fit and is
not compatible with the S4 headlight. This conversion plug will not
be expensive and will be available only with the purchase of a headlight set.
The manufacturer of the headlight is no longer producing headlights to use the
older 5G ballast.
- If you
are contemplating a lighting/performance upgrade and your current headlight is
already HID and you wish to reuse your ballast, you should identify your
existing type of ballast to determine if it is 4G, 5G or 5GL (if it's 4G, you
need the 5GL ballast). If the ballast is 5G you will need the adapter plug to
use with the newer current A4 (NOT S4) headlight production. Current S4 cars
are always 5GL and most January 2003 production onward uses the 5GL ballast.
Cars that are currently Halogen, where the upgrade is to HID, will of course
utilize 5GL ballasts with e-code headlights. Conversion to HID can also be made
to the existing H7 halogen headlight using the new 5th Generation Serious
Vision HID H7 conversion kits with the new inline Sonic Line Filters for the
reduced price of $488 (previously $555 for the 4th Generation kit).
If the cosmetic look of the S4 Black is identical to the A4
Titanium, why should I purchase the more expensive S4 version?
Answer: You can save money (if the car is an A4, not S4) buying the Titanium
model but the projector iris will be smaller. Only the most knowledgeable Audi
enthusiast would be able to distinguish an S4 e-code from an A4 e-code just by
looking. So it becomes a decision of a justifiable upgrade cost, esthetics and
having the best performance possible. This comes into play - if - and only if
you are inclined towards the faster look of the no-nonsense "street and
track" S4. It may even be that the Chrome version best suits the style of
the Audi you drive - LLTeK can't make that decision for you. But, if you're
going to upgrade - call LLTeK toll-free at 1 888 465 5835 - we have the answers
to your questions and we have the hardware you need; LLTek will help you make
the right choice.
Note: LLTeK markets
e-code headlamps unless requests are made for DOT variations; however DOT
products are rarely stocked. Because specifications continuously change and
because our acquired data can be subject to interpretation, LLTek is not
responsible for errors, omissions or inaccuracies.