Mercedes-Benz · GLC 63 AMG · Bar

Mercedes-Benz GLC 63 AMG tyre pressure in bar

Drivetrain: all-wheel drive
Body: SUV / crossover
PSI F / R: 32-35 / 32-35
Bar F / R: 2.2-2.4 / 2.2-2.4

bar

2.31 / 2.31

32-35 / 32-35 psi · 231 / 231 kPa

32-35 psi F · 32-35 psi R · 2.2-2.4 / 2.2-2.4 bar · 231/231 kPa

A all-wheel drive Mercedes-Benz GLC 63 AMG still wants even corners. 2.2-2.4 vs 2.2-2.4 is an axle split, not a left-right split. Under-inflation cooks the shoulders of a GLC 63 AMG; over-inflation wears the centre rib and bangs every cat’s eye. Keep side-to-side spread inside about 2 psi so the all-wheel drive hardware is not working on a radius mismatch.

Bar, PSI and kPa

Bar-led conversions around the Mercedes-Benz GLC 63 AMG. 2.2-2.4 bar is not “32-35 divided by ten”.

Bar	PSI	kPa
2.07	30	207
2.21	32	221
2.28	33	228
2.31	33.5	231
2.41	35	241
2.48	36	248
2.62	38	262
2.76	40	276
3.03	44	303
3.45	50	345
4.14	60	414

Mercedes-Benz GLC 63 AMG placard versus sidewall

If the Mercedes-Benz sticker is painted over, the handbook is next. This website is a map, not a replacement VIN label.

Estimated pressure by tyre size (235/60R18 and others)

If your Mercedes-Benz GLC 63 AMG no longer wears the OEM diameter, start at the row nearest 235/60R18 or 255/50R20 and confirm with the tyre maker’s load table.

Tyre size	Front PSI	Rear PSI	Front bar	Rear bar	Front kPa	Rear kPa	Note
235/60R18	36	36	2.48	2.48	248	248	Plus-size 18-inch
255/50R20	37	37	2.55	2.55	255	255	20-inch plus-size
225/65R17	35	35	2.41	2.41	241	241	Very common 17-inch
245/60R18	36	37	2.48	2.55	248	255	Heavier CUV
245/55R19	36	36	2.48	2.48	248	248	Low-profile 19-inch
215/70R16	34	34	2.34	2.34	234	234	Compact crossover
235/65R17	35	36	2.41	2.48	241	248	Mid-size SUV
225/60R18	35	35	2.41	2.41	241	241	Highway CUV

Load notes

Load moves the rear of a SUV / crossover first. If the factory placard already has a “laden” column, use that instead of these sketches.

Condition	Front (est.)	Rear (est.)
Driver only	34 psi / 2.34 bar	34 psi / 2.34 bar
Full occupancy	34 psi / 2.34 bar	35 psi / 2.41 bar
Motorway + luggage	35 psi / 2.41 bar	38 psi / 2.62 bar

How to set the GLC 63 AMG

Measure before the school run, not after the M25.
Write LF / RF / RR / RL. Do not keep GLC 63 AMG numbers in your head.
Add air in short bursts toward 34 psi (2.31 bar) front and 34 psi rear.
If one corner is 4 psi down, hunt for a nail before you blame the weather.
Log date, ambient temperature and the four readings.

Temperature drift

Roughly 1 psi per 5–6 °C. The table uses 34 psi as a 20 °C baseline for this GLC 63 AMG.

Ambient	Gauge (front mid)	Bar	kPa	Note
−5 °C (hard frost)	31 psi	2.14 bar	214 kPa	Gauge reads low; do not overfill once warm
0 °C	32 psi	2.21 bar	221 kPa	Gauge reads low; do not overfill once warm
8 °C (UK winter morning)	33 psi	2.28 bar	228 kPa	Gauge reads low; do not overfill once warm
20 °C (set cold here)	34 psi	2.34 bar	234 kPa	Baseline
30 °C	36 psi	2.48 bar	248 kPa	Do not bleed a hot tyre
38 °C (heatwave tarmac)	37 psi	2.55 bar	255 kPa	Do not bleed a hot tyre

Mercedes-Benz notes

Mercedes often lists comfort versus load. Match the table to how the GLC 63 AMG is actually occupied that day.

Spare and inflator kit

A matching full-size spare on the Mercedes-Benz GLC 63 AMG usually follows the higher axle (often the rear, near 32-35 psi). A space-saver is commonly 60 psi / 4.1 bar — read that tyre’s own sidewall. An inflator kit is not a spare; check the sealant date.

Keep the Mercedes-Benz GLC 63 AMG on the printed band; use 235/60R18 and 225/65R17 only as a map for non-OEM wheels.

Other Mercedes-Benz models

220 260 250 208 416 320 200 380

Questions about this GLC 63 AMG

When does TPMS warn on a Mercedes-Benz GLC 63 AMG?

Direct TPMS typically flags about 25% below placard — near 25 psi on this row. Fill to the sticker, not to the lamp.

What PSI if I plus-size toward 225/65R17?

Keep load index at or above OEM. Low-profile sizes usually stay at or slightly above the placard. Use 235/60R18, 255/50R20 and 225/65R17 as a planning band.

Should I bleed pressure after a motorway run?

No. Heat raises the gauge. Set cold only. Bleeding a hot tyre leaves it low the next morning.

How often should I check a GLC 63 AMG?

Monthly, before a long trip, and after a 10 °C weather swing. Include a full-size spare.

Front versus rear on the Mercedes-Benz GLC 63 AMG?

This row is 32-35 F / 32-35 R. Even when they match, a laden rear can justify a higher number if the sticker prints one.

Handbook: placard · bar vs PSI · front vs rear · cold inflation