VW ID.4 Service & Owner's Manuals
Table of Contents > Cooling > Coolant pump/coolant regulation > Removing and installing coolant temperature sender 2 for high-voltage battery G899

VW ID.4 Electric rear-wheel and all-wheel drive ➜ Removing and installing coolant temperature sender 2 for high-voltage battery G899

ID.4 2021 ➤, ID.3 2020 ➤  
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021  
– Remove bolt -arrow-.  
– Pull coolant temperature sender -2- out and insert new cool‐  
ant temperature sender -2- immediately.  
Installing  
– Tighten bolt -arrow-.  
– Plug in electrical connector -1-.  
– Install underbody trim (front) ⇒ General body repairs, exte‐  
rior; Rep. gr. 66; Underbody trim; Removing and installing  
underbody trim (front).  
– Fill up coolant and check filling quality ⇒ Rep. gr. 19; Check‐  
ing filling quality.  
Tightening torques  
♦ ⇒ Rep. gr. 19; Exploded view - coolant temperature senders  
♦ ⇒ General body repairs, exterior; Rep. gr. 66; Underbody  
trim; Exploded view - underbody trim  
3.10  
Removing and installing coolant tem‐  
perature sender 2 for high-voltage bat‐  
tery G899  
Coolant temperature sender 2 for high-voltage battery - G899-  
is referred to as coolant temperature sender below.  
Removing  
CAUTION  
The cooling system may be under pressure. Risk of scalding  
due to hot steam and hot coolant  
Danger of scalding skin and other parts of the body  
– Put on protective gloves.  
– Put on safety goggles.  
– Cover filler cap on expansion tank with a suitable cloth and  
open carefully to release pressure.  
– Open filler cap on coolant expansion tank -arrow- briefly to  
release pressure in cooling system and then tighten cap  
again.  
90  
Rep. gr.19 - Cooling  
ID.4 2021 ➤, ID.3 2020 ➤  
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021  
– Remove underbody trim (front) ⇒ General body repairs, ex‐  
terior; Rep. gr. 66; Underbody trim; Removing and installing  
underbody trim (front).  
– Unplug electrical connector -1-.  
– Remove bolt -arrow-.  
– Pull coolant temperature sender -2- out and insert new cool‐  
ant temperature sender -2- immediately.  
Installing  
– Tighten bolt -arrow-.  
– Plug in electrical connector -1-.  
– Install underbody trim (front) ⇒ General body repairs, exte‐  
rior; Rep. gr. 66; Underbody trim; Removing and installing  
underbody trim (front).  
– Fill up coolant and check filling quality ⇒ Rep. gr. 19; Check‐  
ing filling quality.  
Tightening torques  
♦ ⇒ Rep. gr. 19; Exploded view - coolant temperature senders  
3. Coolant pump/coolant regulation  
91  
ID.4 2021 ➤, ID.3 2020 ➤  
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021  
♦ ⇒ General body repairs, exterior; Rep. gr. 66; Underbody  
trim; Exploded view - underbody trim  
92  
Rep. gr.19 - Cooling  

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