2003 Owners Manual

[Gasngo]

Well I purchased a 03 Boxster and Ill say its nice car coolant light started flashing on hard accel
Ill investigate hopefully I dont find a larger problem. That said no owners manual so in the dark on a few things. The thought of giving someone a 100 bucks on eaby makes me wonder why people take them out of cars. That being said what I found online had a image of a yellow car verses 02 had a red car. Can some help me out and fact check that. I would like to get a set so I can further my knowledge of lights/warning lights Etc.

[78F350]

Years ago, I think it was possible to download from Porsche. There's still got to be a few sources online, but I think that Porsche corporate hunts them down and kills them. Here's the coolant indicator warning page. I'll see if I can find a link for the '03 manual still.

[78F350]

Pelicanparts.com may have them. I Just found a much better deal than eBay at Suncoast with a quick search:

[78F350]

And my final answer is this: Boxster Workshop Manuals

The linked manual on that page appears to be the '03.

[Gasngo]

Thanks for the help. I just figured if I had the original booklets that come with the car it would be nice to have but not final answer for everything Ill take a look.

[redpepperracing]

Based on the flashing, it would appear the coolant is low, so check that first.

My light is on all the time, which is supposed to indicate too high temperature, but it's there even when the car is cold, and the fluid level is fine, so I'm trying to figure out what is going on there. I have an OBD2 display for the coolant temp, and it is always within range, so I'm not sure what the issue is.

Good luck on the manual hunt!

[mikefocke]

Be careful of the workshop manual sections, they are old and have not been updated. Few ever did the updates which is part of the reason Porsche discontinued paper workshop manuals.

[JFP in PA]

Four functions of the coolant warning light:

1. Engine coolant level too low
— light flashes slowly (0.5 Hz)
2. Engine compartment temperature too high
— light flashes slowly (0.5 Hz) (engine compartment blower might be faulty)
3. Engine coolant temperature too high
— light is lit; pointer on the right
4. Temperature sensor at water outlet faulty
— light flashes rapidly (1 Hz); pointer on the right

Note
The temperature warning in point three is indicated if the conditions "engine coolant temperature too high" and "engine coolant level too low" are present simultaneously
(1Hz = 1 flash per second. 0.5Hz = 2 seconds per flash)

[redpepperracing]

Originally Posted by JFP in PA

Four functions of the coolant warning light:

1. Engine coolant level too low
— light flashes slowly (0.5 Hz)
2. Engine compartment temperature too high
— light flashes slowly (0.5 Hz) (engine compartment blower might be faulty)
3. Engine coolant temperature too high
— light is lit; pointer on the right
4. Temperature sensor at water outlet faulty
— light flashes rapidly (1 Hz); pointer on the right

Note
The temperature warning in point three is indicated if the conditions "engine coolant temperature too high" and "engine coolant level too low" are present simultaneously
(1Hz = 1 flash per second. 0.5Hz = 2 seconds per flash)

Mine is definitely always lit, I can't see why it would, since it is lit up as soon as you start the car and the coolant temp is ambient temperature. The level may be a tad low, but it's above the min mark? I'll top it up to max and see what happens