1 / 7MCK Auto EB5R3 PY21W BAU15S Amber LED Indicator Bulbs, 2-Pack
Pack: MCK Auto EB5R3 PY21W BAU15S LED indicator bulbs are an amber pair intended as replacements for compatible car indicators. The listing claims Canbus compatibility on most cars, but also warns that some vehicles may still show an error or need extra load resistors.
At a glance
- Amber LED replacement bulbs for PY21W 581 BAU15S sockets, supplied as a pair.
- Listing claims 1000 lumens per bulb and describes a straight plug-in fit with offset pins.
- Named vehicle examples include several BMW and Audi models, plus Ford Focus and Nissan Qashqai. Compatibility remains vehicle-specific.
Pros and cons
Pros
- A two-bulb pack can replace a pair of indicators where the fitting and vehicle electronics are compatible.
- Amber output and the specified PY21W 581 BAU15S fitting make the intended use and socket type clear.
- Customer feedback reports brightness and reliability, including greater visibility than older incandescent bulbs.
Technical specifications
9 specifications| Brand | MCK Auto |
|---|---|
| Part number | EB5R3 |
| Light source | LED |
|---|---|
| Bulb fitting | PY21W 581 BAU15s |
| Colour | Orange,Amber |
| Brightness | 1000 Lumen |
| Wattage | 21 watts |
| Position | Rear |
| Package quantity | 2 |
|---|
What to know before buying
- The listing claims Canbus operation without errors on most cars, but says some vehicles may still show an error and require extra load resistors. It specifically says the bulbs do not work on Audi A4 B7 without those resistors. Confirm fitment and vehicle compatibility before purchase.
Who is it for?
A good fit for
- Drivers seeking amber LED replacement bulbs for compatible PY21W 581 BAU15S indicator sockets.
- Owners of specifically listed vehicle models who have checked their bulb fitting and Canbus compatibility.
Less suited to
- Audi A4 B7 owners expecting error-free operation without extra load resistors.
- Buyers whose vehicle is not listed or whose socket type is not confirmed.
Customer reviews on Amazon
- 5 stars
63% 63% - 4 stars
10% 10% - 3 stars
9% 9% - 2 stars
8% 8% - 1 star
10% 10%
Customer feedback highlights perceived brightness, with a report that the bulbs are more visible than older incandescent ones, and perceived reliability, including a report of no OBC errors. This is encouraging for buyers prioritising visible indicators, but it does not override the listing's warning that Canbus behaviour depends on the vehicle. Overall ratings are more positive than negative, though they do not establish fitment or performance for every car.
Positive themes
- Customer feedback describes the bulbs as bright and reports greater visibility than older incandescent bulbs.
- Customer feedback also mentions reliability and an instance with no OBC errors.
Frequently asked questions
Which bulb fitting is specified?
The listing specifies PY21W 581 BAU15S, with offset pins. Check the vehicle's required fitting before ordering.
Are these guaranteed to avoid Canbus errors?
No. The listing says they work without errors on most cars, but warns that some vehicles can still show an error and may need load resistors.
Do they fit an Audi A4 B7?
The listing says they do not work on the A4 B7 without extra load resistors.
How many bulbs are supplied?
The listing specifies a quantity of 2.
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