Transmission Fluid Level Checking Procedure And Application Chart (24 01 98)

FLUID LEVEL CHECKING PROCEDURE FOR ALL TRANSMISSIONS WITHOUT A DIPSTICK

1. The transmission temperature must be between 30°C and 50°C before checking can begin. Use the DIS or the MODIC to determine the transmission temperature.
2. The vehicle must be level and without load. With the engine running, switch on the air conditioning. This will increase the idle speed and ensure that all oil passages in the transmission are filled with oil.
3. Step on the brake firmly, apply parking brake fully and move the selector lever through each gear position, pausing briefly in each gear.
4. With the engine running and the selector lever in Park position, remove the filler plug (2) located on the transmission (see Fig 1 through Fig 6 for location). If a small stream of oil runs out, the fluid level is correct.
5. If no oil runs out when the filler plug is removed, the fluid level is too low. Add oil until it starts to overflow.
6. With the engine running, reinstall the oil filler plug and tighten to proper torque. (Refer to tables below for proper tightening torque)

TRANSMISSION FILLER & DRAIN PLUG LOCATIONS

ZF Transmissions

Fig 1: Filler & Drain Plug Locations - 5HP30 (A5S 560Z)

GM Transmissions

Fig 2: Filler & Drain Plug Locations - R1 (A4A 310R/A4S 270R)

Fig 3: Filler & Drain Plug Locations - 5HP24 (A5S 440Z)

Fig 4: Filler & Drain Plug Locations - 5L40-E (A5S 360R/A5S 390R)

Fig 5: Filler & Drain Plug Locations - 5HP19 (A5S 325Z)

Fig 6: Filler & Drain Plug Locations - 5HP18 (A5S 310Z)

FLUID LEVEL CHECKING PROCEDURE FOR ALL TRANSMISSIONS WITH A DIPSTICK

(As of 02/91 the THM R1 transmissions are not equipped with a dipstick): 

1. The transmission temperature must be between 30°C and 50°C before checking can begin. Use the DIS or the MODIC to determine the transmission temperature.
2. The vehicle must be level and without load. With the engine running, switch on the air conditioning. This will increase the idle speed and ensure that all oil passages in the transmission are filled with oil.
3. Step on the brake firmly, apply parking brake fully and move the selector lever through each gear position, pausing briefly in each gear.
4. Pull out dipstick and wipe clean with a lint free cloth
5. Reinsert dipstick completely. Pull out dipstick and place bottom tip on a level surface, measure level from bottom tip as shown in Fig 7 .

   Compare measurement and oil temperature reading from MoDiC or DIS with Table below.

   OIL LEVEL INFORMATION
   
   

   Oil °C	MIN (mm)	MAX (mm)
   20	3	15
   25	5	17
   30	8	20
   35	11	22
   40	13	25
   45	14	26
   50	16	27
   55	17	28
   60	19	29
   65	21	32
   70	22	34
   75	24	36
   80	26	38
   85	29	41
   90	31	43

6. Add additional oil if needed.

   Reinsert dipstick completely. Pull out dipstick and look at level. Level should be between MAX and MIN marks as shown in Fig 7 .

   Fig 7: Oil Fill Level

   

   Amount of oil between MAX and MIN marks is 0.3 lit (0.6 pts)

   On vehicles with a dipstick tube if transmission fluid is needed use only Dexron III.

ADDING OIL AFTER TRANSMISSION REPAIRS

1. With the engine stopped, add oil to the transmission until it overflows.
2. Insert the filler plug and tighten by hand. Place the selector lever in Park position and start the engine.
3. Follow the fluid level checking procedure as described above.

Notes on fluid level checking and adding transmission oil:

1. - Whenever possible, all lifetime use oils (Shell LA 2634, Esso LT71141 or Texaco ETL 7045 or 8072B) are to be collected in a clean container and reused.
2. - It is preferred to check the transmission fluid level at 30°C, this way the transmission will hold extra oil versus topping off at 50°C.
3. - If the transmission temperature rises above 50°C during the fluid level checking procedure, the resulting oil level will be too low.
4. - Have necessary equipment, oil pump and transmission fluid available before starting the fluid level checking procedure.

Tightening Torques